An exposure is made at 200 cm SID and has an intensity of 5 milliroentgens (mR), and a second exposure is made is at 100 cm SID. Calculate the intensity of the x-ray beam of the second exposure.

Answers

Answer 1

The intensity of X-ray beam of second exposure made at 100 cm SID is 20 mR.

Solution:

By using inverse square law formula, intensity of X-Ray beam made at different distances can be found.

[tex]\frac{I_{1}}{I_{2}}=\left(\frac{D_{2}}{D_{1}}\right)^{2}[/tex]

Where [tex]I_1[/tex] is the intensity of first exposure of X-ray-beam.

[tex]I_2[/tex]  is the intensity of second exposure of X-ray beam.

[tex]D_1[/tex]  is the distance at which first exposure is made.  

[tex]D_2[/tex]  is the distance at which second exposure is made.

[tex]\begin{array}{l}{\frac{I_{1}}{I_{2}}=\left(\frac{100}{200}\right)^{2}} \\\\ {\frac{5}{I_{2}}=\frac{1}{4}} \\\\ \bold{{I_{2}=20\ \mathrm{mR}}\end{array}}[/tex]


Related Questions

Which of these experiments would make use of qualitative data?
A. a study of different surfaces to compare luster or shine
B. a study of different shapes to compare rolling frictions
C. a study on the change in freezing point of water when salt is added
D. a study on the effects of sunlight on the growth rate of plants

Answers

A. A study of different surfaces to compare luster or shine.

Answer: A. a study of different surfaces to compare luster or shine

Explanation:

A qualitative data can be define as the data that can only be observed and recorded but it cannot be counted in numbers. This type of data cannot be measured in units. For example, color.

A is the correct option. This is because of the fact that luster and shine can only be observed it cannot be measured in units and counted in numbers. It just represents the physical observable property of a material.

A person is walking in a straight line for 10 s. The person has an initial position that is negative with respect to a chosen origin, and their velocity is also negative during the entire 10 s. At the end of 10 s, is the person closer to or further from the origin than they were originally? Explain.​

Answers

Answer:

The person is further from the origin then they where originally.

Explanation

The person starts with a negative displacement from the origin. They then move with a negative velocity, this means that they are walking away from the origin in the negative direction. This means that the displacement will end up a larger negative number than before, thus they are further away from the origin.


A student observed a sample of water in three states of matter. The student should describe the liquid water as a state of matter that has
A. less kinetic energy than the solid state.
B. less volume than the solid state.
c. more mass than the solid state.
D. more kinetic energy than the solid state.

Answers

Answer:

B. Less volume than a solid state

Final answer:

Liquid water, in its state of matter, has more kinetic energy than when it is in a solid state, as particles move more freely in a liquid state which increases the kinetic energy.

Explanation:

In the three states of matter, solid, liquid, and gas, the amount of kinetic energy differs. For water, as a liquid state, it possesses more kinetic energy than in a solid state. Kinetic energy relates to movement; in a solid state, particles are tightly packed and do not move much, thus having less kinetic energy.

When it changes to a liquid state, the particles gain energy, move more freely, increasing the kinetic energy. However, the transition from solid to liquid does not affect mass or volume significantly. Thus, the correct answer is D. more kinetic energy than the solid state.

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5. What happens to the arrangement of water molecules as ice melts?
A Molecules gain enough energy to escape as vapor.
B Molecules release enough energy to escape as vapor.
C Molecules gain enough energy to move from their fixed positions.
D Molecules release enough energy to move from their fixed positions.

Answers

Answer: I am pretty sure the answer is B

Explanation: If not sorry bro.

Based on the graph, during what time period is the race horse moving at the FASTEST speed?

A) 0 to 1 second
B) 0 to 4 seconds
C) 2 to 4 seconds
D) 4 to 6 seconds

Answers

the answer is D) 4 to 6 seconds

Answer:the answer is D) 4 to 6 seconds  This will help you guys

Explanation: To look at the graph

carbon nonoxide formula

Answers

Final answer:

Carbon monoxide's chemical formula is CO; it's a toxic gas formed by the incomplete combustion of carbon-containing materials and can react with oxygen to form carbon dioxide (CO₂).

Explanation:

The student is asking about the chemical formula for carbon monoxide, which is CO. This compound is composed of one carbon atom covalently bonded to one oxygen atom. Carbon monoxide is a colorless and very toxic gas with no smell, and its boiling point is -190 °C. It is produced through the incomplete combustion of carbon-containing materials. An increased concentration of this gas in the air can be hazardous to health, as it can bind with hemoglobin in blood, preventing proper oxygen transport.

Additionally, in terms of chemical reactions, carbon monoxide can react further with oxygen to form carbon dioxide (CO₂), which is a gas with the structural formula O=C=O, indicating that the carbon atom forms two double covalent bonds with the oxygen atoms. Carbon dioxide is a common greenhouse gas in Earth's atmosphere.

Which statement best describes the change in an objects momentum if the net force acting on the object is greatly increased ?

Answers

Answer:

Answer C : The object's momentum will greatly increase

Explanation:

Recall that force and linear momentum are closely related by the equation:

[tex]F = \frac{MomentumChange}{time}[/tex]

Both, Momentum Change and Force (F) are in the numerator of on either side of the equation, so they are in direct proportionality. A large force (force greatly increased) will be the reflection of a large change in momentum.

Answer:

The object’s momentum will greatly increase if the net force acting on the object is greatly increased. So option C is the best statement which describes the change in object momentum.

Explanation:

So as the force is directly proportional to momentum and it is obtained by performing the first order derivation of momentum, the variation in force and momentum will have to be same.

[tex]F = \frac{MomentumChange}{time}[/tex]

The force being the derivative of momentum indicates that if the net force acting on object is greatly increased means the momentum will also be undergoing great increase as the acceleration of the object will also be increased greatly due to increase of force.

A car is moving northeast at a velocity of 10 meters per second. Four
seconds later it's going 30 meters per second. What was the car's average
acceleration during this time?

A) 5 m/s
B) 5 m/s²
C) 5 m/s² Northeast
D) 20 m/s² Northeast ​

Answers

The average acceleration of car during this time is 5 [tex]m/s^2[/tex] Northeast.

Answer: Option C

Explanation:

The acceleration exerted by an object is the rate of change in velocity the object undergoes with respect to time. Average acceleration is the measure of variation in acceleration in a given interval of time.

[tex]\text {Average acceleration}=\frac{\text {Final velocity - Initial velocity}}{\text {Time Period}}[/tex]

Here, final velocity is 30 m/s and initial velocity is 10 m/s. The final velocity is attained by the car after 4 s. Thus, the average acceleration will be

[tex]\text {Average acceleration}=\frac{30-10}{4}=\frac{20}{4}=5 \frac{\mathrm{m}}{\mathrm{s}^{2}}[/tex]

So, the average acceleration is 5 [tex]m/s^2[/tex] and as the car was moving in the northeast direction, the average acceleration will also be exerting in the northeast direction only.

Where are elements with few valence electrons found on the periodic table

Answers

Final answer:

Elements with few valence electrons are found in the alkali metals (group 1) and alkaline earth metals (group 2) on the left side of the periodic table. They tend to lose electrons to form positively charged ions and have one or two valence electrons respectively.

Explanation:

Elements with few valence electrons are found on the left side of the periodic table. Specifically, the alkali metals in group 1 each have only one valence electron, while the alkaline earth metals in group 2 each have two valence electrons. As you move from left to right across a period, the number of valence electrons increases until you reach the noble gases, which have full valence shells and are highly stable and non-reactive.

Valence electrons are the electrons in the outermost shell, and they play a key role in determining an element's chemical properties. These electrons can either be lost, gained, or shared to achieve a full valence shell, mimicking the electron configuration of the nearest noble gas. This behavioral pattern results in the formation of either positively charged ions when electrons are lost or covalently bonded structures when electrons are shared.

((HURRY PLLSS)) According to Einstein, nothing in the universe can move faster than which approximate speed?


1.0 × 107 m/s

1.0 × 108 m/s

3.0 × 108 m/s

3.0 × 109 m/s

.

Answers

Answer:

Woooo more points!!!!!! Also thanks to the dude or dudette who gave the answer hope its correct

Explanation:

UHM OK ....EDIT: THE REAL ANSWER IS 3.0 x 10^8

Edit again: well my answers were different on edge but if ur from edge that’s the answer

According to Einstein, nothing in the universe can move faster than the approximate speed of light in vacuum equal to 3.0 × 10⁸ m/s.

What is speed of light?

The speed with which the light ray travels in a medium with negative pressure or in vacuum.

This speed is the greatest speed in the universe. No matter can have speed greater than the speed of light in vacuum.

Thus, nothing in the universe can move faster than which approximate speed 3.0 × 10⁸ m/s.

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A cat is moving at 18 m/s when it accelerates at 4 m/s2 for 2 second. what is his new velocity?

Answers

Answer: [tex]26\ \frac{m}{s}[/tex]

Explanation:

His new velocity is the "Final velocity". In order to calculate it, you need to use the following formula:

[tex]V_f=V_0+at[/tex]

Where [tex]V_f[/tex] is the Final velocity, [tex]V_0[/tex] is the Initial velocity, [tex]a[/tex] is the acceleration and [tex]t[/tex] is the time.

Based on the information provided in the exercise, you can identify that:

[tex]V_0=18\ \frac{m}{s}\\\\a=4\ \frac{m}{s^2}\\\\t=2\ s[/tex]

Therefore, you can substitute values into the formula:

[tex]V_f=18\ \frac{m}{s}+(4\ \frac{m}{s^2})(2\ s)\\\\V_f=26\ \frac{m}{s}[/tex]

Then, his new velocity is [tex]26\ \frac{m}{s}[/tex]

What is defined by force per unit area

Answers

Answer:

Pressure

Explanation:

Let , us understand by a simple example. Let us apply some force into a needle into a cardboard what we observe , we saw that the needle get into the cardboard.

Now we will apply the same force with a water bottle into the same cardboard , now we noticed that it doesn't get buried into it.

In both examples we noticed that force applied in both the cases is equal but the surface area of the object in which force applied is different.

Here come the term pressure.

Pressure is defined as force applied per unit area.

Therefore , as area increases pressure also decreases . That's why bottle don't get buried but needle go through it.  

Final answer:

Force per unit area is defined as pressure, a critical concept in Physics. Measured in pascals (Pa), it refers to how force is distributed over a certain area. The smaller the area, the greater the pressure for a given force.

Explanation:

The term force per unit area is defined as pressure. In the field of physics, it is a prominent concept and commonly used in various studies related to fluids, gases, and solids. Pressure is typically measured in pascals (Pa), which is equivalent to a force of one newton per square meter (N/m^2).

An example that can help you understand this concept is pressing your hand against a wall. The force you're applying is spread over the area of your hand that touches the wall. If you use the same force but decrease the contact area by using just a finger, you'll feel more pressure because the same force is now distributed over a smaller area.

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Is this an open or a closed circuit?

Answers

Answer:

It is a closed circuit.

it is a closed circuit


A man moving at 2 m/s accelerates at a rate of 3 m/s² for 2.5 seconds. What is the new velocity of the man?​

Answers

Final answer:

Using the kinematic equation v = u + at, the man's new velocity is found to be 9.5 m/s after accelerating at 3 m/s² for 2.5 seconds.

Explanation:

To calculate the new velocity of the man after accelerating, we apply the basic kinematics equation v = u + at, where:

v is the final velocity (which we are trying to find).u is the initial velocity.a is the acceleration.t is the time over which the acceleration occurs.

Given that the man's initial velocity (u) is 2 m/s, acceleration (a) is 3 m/s², and the time (t) is 2.5 seconds, we substitute these values into the equation:

v = 2 m/s + (3 m/s²)(2.5 s)

This yields:

v = 2 m/s + 7.5 m/s

The new velocity of the man is:

v = 9.5 m/s

How much force is needed to stretch a spring 1.2m if the spring constant is 8.5N/m

Answers

Answer:

10.2N

Explanation:

Given spring constant k =8.5N and and elastic limit e =1.2m

using the relation F=ke (hookes law)

law stating that the strain in a solid is proportional to the applied stress within the elastic limit of that solid.

substituting the values into the equation, it becomes F=8.5N ×1.2m.

= 10.2N/m ~~ 10.2N as final answer.

The force needed to stretch a spring 1.2m, if the spring constant is 8.5N/m is calculated to be 10.2 newtons.

The amount of force needed to stretch a spring can be calculated using Hooke's Law, which states that the force required to stretch or compress a spring by some distance (x) is directly proportional to that distance.

The formula for Hooke's Law is F = kx, where F is the force in newtons, k is the spring constant in newtons per meter (N/m), and x is the distance in meters.

F = kx

F = 8.5 N/m × 1.2m

= 10.2 N.

Two airplanes leave an airport at the same time. The velocity of the first airplane is 740 m/h at a heading of 25.3◦. The velocity of the second is 570 m/h at a heading of 82◦.
How far apart are they after 1.5 h? Answer in units of m.

Answers

Final answer:

The distance between the two airplanes after 1.5 hours is 255 m.

Explanation:

To find the distance between the two airplanes after 1.5 hours, we first need to determine the displacement of each airplane. Displacement is a vector quantity that represents the change in position. We can calculate the displacement of the first airplane using the equation:

Displacement = Velocity × Time

Substituting in the given values:

Displacement1 = (740 m/h) × (1.5 h) = 1110 m

Similarly, we can calculate the displacement of the second airplane:

Displacement2 = (570 m/h) × (1.5 h) = 855 m

Finally, we can find the distance between the two airplanes by subtracting the displacements:

Distance = Displacement1 - Displacement2 = 1110 m - 855 m = 255 m

Scientific fact can never change

1)True
2)False

Answers

Answer:

True.

Explanation:

A scientific fact is a fact because it has been proven correct, and therefore cannot change.

Answer: 2)False

Explanation:

The scientific fact may include the statement which is based on direct observation of a scientific phenomena, scientific event or scientific process occurring in the natural world. The scientific fact is the output of what scientists believe and understand. The knowledge of scientific fact can change with the passage of time due to implementation of new methodologies, technologies and innovations.  

Which particle would have the slowest rate of deposition? A.round particle B.very large particle C.particle with sharp ends D.particle with a high density

Answers

The particle with sharp ends have the slowest rate of deposition  

Answer: Option C  

Explanation:

          As per aerosol physics, deposition is a process where aerosol particles accumulate or settle on solid surfaces. Thereby, it reduces the concentration of particles in the air. Deposition velocity (rate of deposition) defines from F = vc, where v is deposition rate, F denotes flux density and c refers concentration.  

          Deposition velocity is slowest for particles of intermediate-sized particles because the frictional force offers resistance to the flow. Density is directly proportional to the deposition rate so clearly shows that high-density particles settle faster. Due to friction, round and large-sized particles deposit faster than oval/flattened sediments.  

Answer:

C.particle with sharp ends is the correct answer

Explanation:

particle with sharp ends would have the slowest rate of deposition.

The frictional force which is important that gives resistance to the movement will be higher for irregularly shaped particles and this is the reason sharp ends particles have the slowest rate of deposition.

Deposition happens when the particles settle down on a solid surface.

Density is directly proportional to deposition it means that the particles with high density settle faster and particle with sharp end has lower density so that the reason they have slowest deposition rate.

What is the frequency of an electromagnetic wave with a wavelength of 1.0 x 10 m?

Answers

Answer: 0.03 Hz

Explanation:

The frequency [tex]f[/tex] of a light with a wavelength [tex]\lambda=1(10)^{10} m[/tex] is calculated by the following equation:

[tex]f=\frac{c}{\lambda}[/tex]

Where [tex]c=3(10)^{8}m/s[/tex] is the speed of light

Then:

[tex]f=\frac{3(10)^{8}m/s}{1(10)^{10} m}[/tex]

[tex]f=0.03 s^{-1}=0.03 Hz[/tex] This is the frequency

3. The shorter the wavelength, the
the frequency.
greater
1 smaller
U stronger

Answers

Answer:

Shorter the wavelength, the higher the frequency of the electromagnetic wave, and greater is the energy of the waveform or the photon. Frequency is always inversely related to the wavelength.

Explanation:

it is on google

Answer:

Shorter frequency mean the sounds lower but this doesn't mean smaller the the answer is greater or stronger

A celebrated Mark Twain story has motivated contestants in the Calaveras County Jumping Frog Jubilee, where frogs jump as long as 2.2 m have been recorded. If a frog jumps 2.2 m and the launch angle is 45°, find (a) the frog’s launch speed and (b) the time the frog spends in the air. Ignore air assistance.

Answers

Final answer:

To find the launch speed and the time the frog spends in the air, we can use the equations of projectile motion. The launch speed is approximately 4.4 m/s, and the time the frog spends in the air is approximately 0.63 s.

Explanation:

To find the launch speed and the time the frog spends in the air, we can use the equations of projectile motion. Since the frog jumps at a launch angle of 45° and a distance of 2.2 meters, we can use the range equation to find the launch speed:

R = ((V^2) * sin(2θ)) / g

Substituting the given values:

2.2 = ((V^2) * sin(90°)) / 9.8

Simplifying the equation:

(V^2) * sin(90°) = 2.2 * 9.8

V = √((2.2 * 9.8) / sin(90°))

V ≈ 4.4 m/s

To find the time the frog spends in the air, we can use the following equation:

t = (2 * V * sin(θ)) / g

Substituting the given values:

t = (2 * 4.4 * sin(45°)) / 9.8

Simplifying the equation:

t ≈ 0.63 s

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Final answer:

The frog's launch speed and time spent in the air can be calculated using principles of projectile motion. The frog's launch speed is approximately 4.8 m/s, and it spends about 0.7 seconds in the air.

Explanation:

To answer your query, we first need to apply some principles of projectile motion, specifically the equations of motion along the x-axis (horizontal) and y-axis (vertical).

For the first part of the question, we need to determine the frog's launch speed. We use the formula for the range of a projectile, given as R = (v^2 * sin(2*θ)) / g, where R is the maximum horizontal distance (2.2 m), θ is the launch angle (45°), g is the gravitational acceleration (approximately 9.8 m/s²), and v is the initial velocity which we're trying to find out. From this, we can calculate the frog's launch speed as approximately 4.8 m/s.

The second part of the question asks for the time the frog spends in the air. This duration is known as the time of flight. To calculate this, we can use the formula t = (2*v*sin(θ)) / g. Substituting the known values into this equation, we get the time spent in the air as approximately 0.7 seconds.

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The purpose of the little Albert experiment?

Answers

Answer:

The aim of Watson and Rayner was to condition a phobia in an emotionally stable child.

Explanation:

Does this help?

Final answer:

The Little Albert experiment aimed to demonstrate that fears could be conditioned through classical conditioning, challenging Freud's theory about phobias originating from internal conflicts.

Explanation:

The purpose of the Little Albert experiment conducted by John B. Watson and Rosalie Rayner was to demonstrate how emotions could be conditioned through classical conditioning. In the experiment, Little Albert was exposed to, and eventually conditioned to fear, various stimuli that were initially neutral to him, such as a white rat. The loud noise of a hammer striking a metal bar served as the unconditioned stimulus (UCS), the white rat was the conditioned stimulus (CS), the fear response to the loud noise was the unconditioned response (UCR), and the fear response to the rat was the conditioned response (CR). Through stimulus generalization, Little Albert's fear extended to other furry objects like a rabbit, a coat, and a Santa Claus mask. This experiment aimed to illustrate that phobias could be formed not by deep-seated conflicts, as Freud suggested, but through simple conditioning. The methodology and ethical considerations of this study have been widely criticized in modern times.

Which of the following represents a decimal system of measurement?


1 quart = 16 fluid ounces


1 kilometer = 1,000 meters


1 mile = 5,280 feet


1 pound = 16 ounces

Answers

Answer: 1 kilometer = 1,000 meters

Explanation:

The decimal metric system is the predecessor of the International System of Units (SI) and consists of a system in which the multiples and submultiples of the unit of measure are related to each other by multiples or submultiples of ten (10).

It should be noted that this system was created to be neutral and that it could be easily used, understood and adopted by all countries. However, so far only the United States, Myanmar (Burma) and Liberia have retained their traditional units of measurement instead of the Decimal Metric System, which was then replaced by the current SI.

In this sense, two main basic units of this system are the meter (to measure length) and the gram (to measure mass). In the specific case of the meter there are submultiples of the same nature that follow a decimal scale, for example:

[tex]1km = 10^{3} m = 1000m[/tex]

Therefore, among the given options, the one that fulfills the explained conditions is 1 kilometer = 1,000 meters

The other options do not follow a decimal system.

Final answer:

The decimal system of measurement is represented by the option '1 kilometer = 1,000 meters' because it follows the base ten structure of the metric system, where conversions are based on powers of ten.

Explanation:

The decimal system of measurement is exemplified by the base ten structure, which is integral to the SI or metric system. Of the options provided, 1 kilometer = 1,000 meters represents a decimal system of measurement, as it’s based on a multiple of ten, specifically 103 or one thousand. This system is characterized by the ease of conversion among different units of measurement using powers of ten. In comparison, other measurements listed, such as quarts to fluid ounces, miles to feet, and pounds to ounces, are based on the English system, which uses different conversion factors that are not consistently multiples of ten.

A group of students use a scale to measure the mass of an object. Which of the following would be the appropriate base unit of measurement to use: a meter b Liter c gram d Newton e none of these

Answers

Answer:

c Gram

Explanation:

Mass is an intrinsec property of every object; it is somehow a measure of the "amount of matter" contained in the object.

The SI units of the mass is the kilogram (kg), where one of the sub-multiple of the kilogram is the gram (g). For measuring small objects, therefore, the gram is the appropriate unit.

The other units are wrong because:

- The meter is the unit of measure of the length

- The liter is a unit of measure for the volume

- Newton is the unit of measure for the force

which calculation is an example of velocity ? 10m/s 10/Ms to the right 10 m to the right 10​

Answers

Answer:

10m/s to the right

Answer: 10 m/s to the right

Explanation: Velocity is both speed AND Direction.

When the air density is 0 kg/m°(vacuum), how long will it take an object to reach terminal velocity?
a. It reaches terminal velocity immediately.
b. 2 seconds
5 Seconds
d. The object never reaches terminal velocity.

Answers

Answer:

d. The object never reaches terminal velocity.

Explanation:

Terminal velocity is the velocity a falling object reaches when the air resistance equals the weight.  But in a vacuum, there is no air resistance.  So the object never reaches terminal velocity.

Which fractures tend to occur first when a pane of glass is struck?
A. Radial fractures
B.
Concentric fractures
c. Spider web fractures
D. Impact fractures

Answers

Radial fractures tend to occur first when a pane of glass is struck.

Answer: Option A

Explanation:

There is a slight difference between radial and concentric fractures and as radial fractures are formed which extends outwards in a radial manner  from the point where the glass is struck.

Whereas concentric fractures are circular in pattern and they terminate long before radial crack. Also when a bullet is fired from a gun, a similar reaction is observed as it gets struck on the surface and fractures are formed in the same pattern.

The Anwer is: A Radical Fractures

Velocity and acceleration are both vectors; they have a direction. What is thedirection of the velocity and acceleration vectors of a tennis ball that is rising upward towards its highest point above the ground? a.The velocity vector is directed upward. b.The velocity vector is directed downward. c.The acceleration is directed downward. d.Both A & C

Answers

Final answer:

The velocity vector of a rising tennis ball is directed upward, while the acceleration vector is directed downward due to gravity slowing the ball down as it reaches its peak.

Explanation:

The velocity and acceleration vectors of a tennis ball that is rising upward towards its highest point in its motion can be defined by first understanding that acceleration is a vector in the same direction as the change in velocity. As the tennis ball is moving upwards, its velocity vector is directed upward. However, understanding that acceleration is the rate of change of velocity, the acceleration vector is directed downward because the ball is slowing down as it reaches its highest point, hence the gravity is acting downwards causing its speed to decrease. Therefore, the correct answer is d. Both A & C.

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Final answer:

In the case of a tennis ball rising towards its peak, the velocity vector points upward while the acceleration vector due to gravity, points downward.

Explanation:

When a tennis ball is rising towards its highest point above the ground, the velocity vector is directed upward because the ball is moving in an upward direction. Thus, the answer 'A' is correct. However, the acceleration vector is directed downward, as the downward force of gravity is acting on the ball at all times, causing a constant acceleration downward, even when the ball is moving upward. Thus, the answer 'C' is also correct. Therefore, in this scenario, for both 'A' and 'C', the velocity vector is directed upward and acceleration is directed downward, true.

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if a musical instrument such as a trumpet or flute is"flat"

Answers

Answer:

Then the note is below the tune it should be in.

If a trumpet or a flute is flat, the pipe needs to be shortened in order to increase the pitch of the sound.

Explanation:

Trumpet or flute, a musical equipment that usually  works on sound waves concept. It works like an empty pipe with several holes. When blowing air, longitudinal sound waves get generated by different wave frequencies.

If we reduce the length of the pipe; this causes a higher frequency in the pipe. Longer tubes produce low-frequency sound waves that produce deep sound. Therefore, the length of the flute or trumpet should be shortened when it is flat.


You place a block of wood on a table. How could you increase the pressure
the block exerts on the table?
O
A. Turn it to a larger face.
O
B. Move it to the floor.
O
C. Hold it above the table.
O
D. Turn it to a smaller face.

Answers

Answer:

i think the answer to this is D

Answer:

Turn it to a smaller face.

(D) is correct option.

Explanation:

Pressure :

Pressure is the inversely proportional to the area.

When the area of the block of face small then the pressure will be increases if the area of the block of face larger then the pressure will be reduce.

Pressure is equal to the force upon area.

In mathematically term,

[tex]P=\dfrac{F}{A}[/tex]

Where, F = force

A = area

P = pressure

Hence, Turn it to a smaller face.

Other Questions
The five key components of the marketing plan are A. mission statement, situation analysis, promotion strategy, financials, and controls. B. executive summary, situation analysis, marketing strategy, financials, and controls. C. executive summary, market positioning, marketing strategy, financials, and implementation. D. mission statement, situation analysis, marketing strategy, financials, and controls. E. executive summary, situation analysis, positioning, financials, and implementation. Fred purchases a bond, newly issued by the Big Time Corporation, for $10,000. The bond pays $400 to its holder at the end of the first, second, and third years and pays $10,400 upon its maturity at the end of four years. The principal amount of this bond is ___, the coupon rate is ____, and the term of this bond is _____. A. $400 ; 40%; four years B. $10,000; 4%; four years C. $10,000; $400; 4% D. $10,400; 4%; four years 1-2+3-4+5-6+..+99-100. 4.5+1.5x=18-3xa)1.5 b)3 C)6 D)9 This paragraph describes the reports given by Boston colonists after the massacre.Which of these statements describe the colonists' testimony? Check all the boxes that apply.They believed Captain Preston gave the soldiers orders to fire.They thought the soldiers had started the conflict.They believed the soldiers had good reason to fire. Assume that a customer shops at a local grocery store spending ak average if $200 a week, resulting in the retailer earning a $25 profit each week from this customer. Assuming the shopper visits the store all 52 weeks of the year, calculate the customer lifetime value if this shopper remains logal over a 10-year life-span. Consider that a sample of a compound is decomposed and the masses of its constituent elements is as follows: 1.443 g Se, 0.5848 g O What would be the empirical formula for this compound? UZ.Z4.20How does adding the affix -etic to the words energy, athlete, and poet change the meaningsof these words?It changes them from nouns to adjectives.It changes them from adjectives to nouns. It changes them from nouns to adverbs.It changes them from adverbs to nouns.SAMSUNGMark this and returnSave and ExitNextSubmit You know that a point charge is located somewhere along the x-axis. When you measure the electric field at 2.00 m the result is 3.000 N/C and points left while the electric field at 5.00 m is 0.750 N/C also pointing left. (a) Where is the charge located? (b) What is the size of the charge, including sign? The question ask:A block is hung by a string from the inside roof of a van.Whenthe van goes straight ahead at a speed of 28m/s, theblock hangsvertically down. But when the van maintains this samespeed aroundan unbanked curve (radius=150m), the block swingstoward the outsideof the curve. Then the string makes anangle theta with thevertical. Find theta. Question Number 1) Eaton sells only to businesses and focuses on the electrical, hydraulics, aerospace, and vehicle markets. When the economic crises hit in 2008, consumers began cutting back, and as a result, Eaton's customers needed to cut costs and scale back operations. This, in turn, impacted Eaton's sales, which is known as __________. Due to advances in high speed communication networks, the information lag, or the time it takes for information to be disseminated around the world, has been significantly shortened. True or False? PLEASE HELP QUICK !!!!!!Point B is in the interior of AOC, mAOC = 108. Find mAOB, if mAOC = 3mAOB. Which of the following do anthropologists believe to be true? a. Few, if any, isolated groups have existed in human history. b. Undiscovered human groups likely remain in the Amazon rainforest. c. Most human groups are influenced by only one or two other cultures. d. Humans tend to be divided into two groups: tribal or modern. 3/4x-5/6=2/3x how to solve? Which of the following conclusion might historians make about the Mississippian people from the evidence of Cahokia?Choose 1 answer:Choose 1 answer:(Choice A)AThey preferred fishing for their food over farming.(Choice B)BThey lived a nomadic lifestyle, following herds of animals across the Plains.(Choice C)CThey were not sophisticated enough to build lasting structures. Which option will you use to expose your presentation to the audience A. Slide layout B. Slide show C. Slide orientation D. Slide master WHAT IS THE ATOMIC NO OF RUBINIUM[RB] What are the odds of winning a game, if the probability of winning the game is 9/10?Remember:The probability of an event happening is the fraction: favorable outcomes/total outcomes.The odds of an event happening treats the event as a win. The odds are given by the ratio: wins: losses9:19:101:101:9 A law firm, Morris & Morris, accumulates costs associated with individual cases using a job order cost system. On August 5, the firm charged 200 hours of professional (lawyer) time to the Micro Systems Co. breach of contract suit to prepare for the trial, at a rate of $340 per hour. What is the journal entry for this transaction?