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.
how can you increase the intensity of sound waves
Answer
The intensity of a sound wave depends on the pressure of the wave,density of the medium and speed of sound in the medium. Higher density and higher sound speed both give a lower intensity. and may be it is because that sound wave is more characterize by wavelength than frequency..explanation
Explanation:
As decibel levels get higher, sound waves have greater intensity and sounds are louder. For every 10-decibel increase in the intensity of sound, loudness is 10 times greater. Intensity of sound results from two factors: the amplitude of the sound waves and how far they have traveled from the source of the sound.
Final answer:
The intensity of sound waves can be increased by raising the amplitude of the wave oscillations, which can be done by increasing the volume on the speaker or enhancing the instrument's playing technique, such as pressing a bow more firmly against stringed instrument strings.
Explanation:
To increase the intensity of sound waves, one can manipulate several factors. The intensity (I) of a sound wave is directly proportional to the square of its amplitude (Δp) and inversely proportional to the density (p) and the speed (vw) at which the wave travels, as per the equation I = (Δp)2 / (2pvw). Therefore, increasing the amplitude of sound wave oscillations will result in a more intense sound. This can be achieved, for example, by increasing the volume on a speaker, which increases the amplitude of the sound waves it produces.
Additionally, when sound travels through a medium such as a string, the medium's tension can affect sound intensity. A tight string will transmit sound waves more efficiently than a loose one. Similarly, when a bow is pressed more firmly against the strings of a musical instrument, the increased normal force results in a higher frictional force, which in turn increases the work done (W = Fd) and subsequently the amplitude of the produced sound wave.
It's also important to note that the amplitude and loudness of a sound wave are related; a wave with larger amplitude typically sounds louder because it carries more energy. The energy carried by a wave is proportional to the amplitude squared, meaning doubling the amplitude increases the power by a factor of four. Moreover, the frequency of the sound also impacts the energy reaching your ear, as higher frequency sound waves make the same amplitude hit your eardrum more often.
5. A car is traveling at 100 km/hr. How many hours will it take to cover a displacement of 750 km?
Answer:
It will take 1 hour for a car to cover a displacement of 750 km at a constant speed of 100 km / hr.
Explanation:
Velocity is associated with the change of position of a body over time. In other words, speed expresses the relationship between the space traveled by an object, the time taken for it and its direction.
That is, speed implies the change of position of an object in space within a certain amount of time (that is, speed), added to the direction in which said movement occurs.
Then, 100 km / hr is the speed of the car and indicates that every hour the car travels 100 kilometres.
Then it is possible to apply a rule of three to calculate the time it takes for the car to travel 750 km. The three employee rule is: if 100 km are traveled in 1 hour, 750 km in how long is it traveled?
[tex]time=\frac{750 km*1hour}{100 km}[/tex]
time=7.5 hour
It will take 1 hour for a car to cover a displacement of 750 km at a constant speed of 100 km / hr.
A block with mass m = 6 kg is sitting on a horizontal surface and not moving. The free-fall acceleration is g = 9.81 m/s2. Please answer the following questions.
a. Write an expression for the magnitude of the force of gravity Fg on the block.
b. Calculate the magnitude of the force of gravity Fg on the block in Newtons.
c. In what direction is the force of gravity in this problem?
d. What is the magnitude of the normal force FN in Newtons?
e. In what direction does the normal force act?
Answer:
a. expression for force of gravity is mg
b. Value of force of gravity is 58.86 N
c. Direction of force of gravity is downwards
d. Value of normal force is -58.86 N
e. direction of normal force is upwards.
Explanation:
Given that mass of the block [tex]m=6 kg[/tex]
acceleration due to gravity [tex]g=9.81 m/s^2[/tex]
a. Expression for force of gravity is [tex]F_g=m\times g[/tex]
b. [tex]F_g=mg=6 \times 9.81=58.86 N[/tex]
force of gravity is [tex]58.86 N[/tex]
c. Force of gravity always acts in the downward direction.
d. Normal force[tex]F_N[/tex] acts in the direction opposite to the weight of the block and their magnitudes are same. since the object is at rest the upward and downward forces on the block are balanced.
[tex]F_N=-F_g=-58.86 N[/tex]
e. Normal force [tex]F_N[/tex]acts in the upwards.
The force of gravity on a 6 kg block is 58.86 N, acting downwards, while the normal force is 58.86 N, acting upwards, since the block is stationary on a horizontal surface.
Explanation:Forces Acting on a Stationary Block
a. The expression for the magnitude of the force of gravity Fg on the block is given by Newton's second law of motion: Fg = m × g where m is the mass of the object and g is the acceleration due to gravity.
b. To calculate Fg, simply multiply the mass m by the acceleration due to gravity g: Fg = 6 kg × 9.81 m/s² which equals 58.86 N.
c. In this problem, the direction of the force of gravity is vertically downwards, towards the center of the Earth.
d. The magnitude of the normal force FN on the block is equal to the force of gravity acting on the block when it is stationary on a horizontal surface, therefore FN = 58.86 N.
e. The normal force acts in a direction perpendicular to the surface, which in this case is vertically upwards.
Select the correct answer.
Based on the law of conservation of energy, which statement is false?
O A.
Energy is lost when machines don't work right.
OB. We can't add more energy to the universe.
O c. We can't destroy energy that exists in the universe.
O D.
Energy changes from one form to another.
Answer:
A. Energy is lost when machines don't work right.
Explanation:
Energy cannot be created nor destroyed, according to the Law of Conservation of Energy.
19) Suppose that a car traveling to the east (+x direction) begins to slow down as it approaches a traffic
light. Which statement concerning its acceleration must be correct?
A) Its acceleration is in the -x direction.
B) Its acceleration is zero.
Its acceleration is decreasing in magnitude as the car slows down.
D) Its acceleration is in the +x direction.
Answer: C) Its acceleration is decreasing in magnitude as the car slows down.
Explanation:
According to the described situation the car's final velocity is less than its initial velocity, this means the car's velocity decreased as it slows down.
On the other hand, acceleration [tex]a[/tex] is defined as the variation of velocity in time:
[tex]a=\frac{\Delta V}{\Delta t}[/tex]
If the car's velocity decreases, its acceleration is negative. Hence, the acceleration is decreasing in magnitude as well.
In the context of a car slowing down while traveling east, its acceleration must be in the -x direction (towards the west) which means its acceleration is in the opposite direction of its motion, hence option A is correct.
The question concerns the acceleration of a car traveling east (considered the +x direction) as it begins to slow down when approaching a traffic light. According to the principles of physics, when an object is slowing down, its acceleration is in the opposite direction of its motion. Since the car is moving to the east and slowing down, its acceleration must be towards the west, which is the -x direction in our coordinate system. Therefore, its acceleration is in the -x direction, making the correct answer to the question Option A.
To further clarify, when a car traveling in a positive direction (to the east in this case) decelerates or slows down, it undergoes negative acceleration because the deceleration is opposite to the direction of its velocity. Hence, in the context of our coordinate system where the east is positive, the westward acceleration (slowing down) is considered negative.
At the end of the 4th half-life, how much of a material will have decayed?
93.75% of a material decays at the end of [tex]4^{th}[/tex] half-life.
Explanation:
The time needed by a material to reduce its initial amount into half is called half-life. It is generally used term in nuclear physics. This is to explain how fast unstable atom undergoes, or how long can stable atoms present, and radioactive decay.
Decay % of material after each half-life to be calculated as follows,
After one half-life- 50% original, and 50% product decayed.
After two half-life- 25% original, and 75% product decayed.
After three half-lives- 12.5% of original, and 87.5% of decay product.
After four half-lives- 6.25% original, and 93.75% of decay product.
Answer:
15/16
Explanation:
What are 5 most important facts should be known the movement of heat energy?
Explanation:
heat energy is the movement of molecules or atoms in solids, liquids and gases.
facts about movement of heat energy.
1) heat energy transferred through three main processes that are: conduction , convention and radiations.
2) our earth absorbs energy coming from sun through radiation.
3) entire universe is made up of atoms when they moves they transfer heat.
4) heat energy can change the state of matter as it causes melting.when a solid such as ice absorb heat energy it convert into liquid.
5) heat energy keeps moving until both objects reach at same temperature.
The movement of heat energy involves thermal conductivity, heat transfer methods, specific heat, conservation of energy, and spontaneous heat transfer. These fundamental principles explain how heat energy moves and transforms within systems. Understanding these concepts is crucial in practical applications such as cooking and climate control.
The movement of heat energy, also known as heat transfer, is a fundamental topic in physics. Here are the five most important facts to know:
Thermal Conductivity: Matter has a property called thermal conductivity that determines how well it can transfer heat. For example, metals generally have high thermal conductivity, making them good conductors of heat.Heat Transfer Methods: Heat energy can be transferred through conduction, convection, and radiation. Conduction occurs in solids where molecules transfer energy by vibrating in place, convection occurs in fluids (liquids and gases) through the movement of the fluid itself, and radiation involves the transfer of heat through electromagnetic waves.Specific Heat: The specific heat of a substance indicates how much energy is required to raise the temperature of one gram of the substance by one degree Celsius. For instance, water has a high specific heat, meaning it requires more energy to heat up or cool down compared to many other substances.Conservation of Energy: According to the law of conservation of energy, energy cannot be created or destroyed, only transferred or converted from one form to another. This principle is crucial in understanding how heat energy moves and transforms within systems.Spontaneous Heat Transfer: Energy is transferred spontaneously from a higher temperature system to a lower temperature system. This is the fundamental process of heat transfer known as heat flow.These concepts are essential for understanding various physical phenomena and applications, such as cooking, climate control, and engineering systems.
which object has a net force of -68
It is difficult to identify a specific object with a net force of -68 without more detailed context. However, we can understand that net force is the vector sum of all forces acting on an object, and it is calculated using Newton's Second Law of Motion: F = ma.
Explanation:The question is about identifying an object with a net force of -68. A net force is the vector sum of all forces acting upon an object. In physics, negative force usually indicates that the force is acting in the opposite direction of the positive axis of a graph. It is challenging to precisely identify the object with a net force of -68 from the given information; we would need more detailed context such as the direction the force is applied or the object's mass. However, the principle of net force can be described using Newton's Second Law of Motion, which states F = ma where F is the net force, m is the mass, and a is the acceleration.
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The object with a net force of -68 N can be determined by considering the vector sum of the forces acting on it. In this case, the net force is approximately 73.76 N and directed at an angle of about 59.9 degrees below the negative x-axis.
Explanation:The object with a net force of -68 N can be determined by considering the forces acting on it.
A free-body diagram shows a northward force of 64 N and a westward force of 38 N.
The net force is the vector sum of the two forces, which can be found using the Pythagorean theorem.
In this case, the net force is approximately 73.76 N and directed at an angle of about 59.9 degrees below the negative x-axis.
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Which of the following will not conduct an electrical current?
pure water
tap water
aquarium water
ocean water
Answer:
Pure water won’t conduct electricity
Option A
Explanation:
Pure water doesn’t contain salts or impurities. It is the salts that dissociate to form ions that act as charge carriers in conducting solutions. For a medium to conduct electricity it should have carriers to carry the electrical charge.
Thus absence of charge carriers make pure water non conducting. Charge carriers in metals are electrons and in ionic solutions they are positive and negative ions.
Tap water, aquarium water and ocean water contains dissolved electrolytes. When electricity is passed through them the electrolytes dissociates into ions and these ions conduct electricity.
Answer:
pure water. plz vote brainliest
Explanation:
3. Land iguanas in the Galápagos are examples of ____________
species found only in one geographic region
Answer:
There are three species of land iguana found in the Galapagos Islands. The well-known yellowish land iguanas include Conolophus subcristatus, native to six islands, and Conolophus pallidus, found only on the island of Santa Fe.
A boy is pulling a load of 150N with a string inclined at an angle 30 to the horizontal if the tension of string is 105N the force tending to lift the load off the ground is
The force tending to lift the load (vertical force) is equal to 22.5N.
Why?
Since the boy is pulling a load (150N) with a string inclined at an angle of 30° to the horizontal, the total force will have two components (horizontal and vertical component), but we need to consider the given information about the tension of the string which is equal to 105N.
We can calculate the vertical force using the following formula:
[tex]VerticalForce=Force*Sin(30\° )=(BoysForce-StringForce)*\frac{1}{2}\\\\VerticalForce=(150N-105N)*\frac{1}{2}=VerticalForce=45N*\frac{1}{2}=22.5N[/tex]
Hence, we can see that the force tending to lift the load off the ground (vertical force) is equal to 22.5N.
Have a nice day!
4.) An apartment building is on fire and a guy is trapped on the fire escape ladder. There is a
dumpster that is 6.3m away and is filled full of trash, and he is 7m above it. If he jumps totally
in the horizontal direction, how fast does he have to jump in order to land in the dumpster?
Answer:
5.3 m/s
Explanation:
First, find the time it takes for him to fall 7m.
y = y₀ + v₀ t + ½ at²
0 = 7 + (0) t + ½ (-9.8) t²
0 = 7 − 4.9 t²
t ≈ 1.20 s
Now find the velocity he needs to travel 6.3m in that time.
x = x₀ + v₀ t + ½ at²
6.3 = 0 + v₀ (1.20) + ½ (0) (1.20)²
v₀ ≈ 5.27 m/s
Rounded to two significant figures, the man must run with a speed of 5.3 m/s.
A box is being pulled to the right. What is the direction of the gravitational force?
up
down
Oright
left
Answer:
The correct answer would be downwards
Hope this helps have a good day
Final answer:
The gravitational force on a box being pulled to the right is downward towards the Earth's center.
Explanation:
The direction of the gravitational force on a box being pulled to the right is downward towards the Earth's center. This is because gravitational force is a vector that points downwards, regardless of any horizontal movement or force applied to an object. The gravitational force can be calculated using the equation F = mg, where F is the gravitational force, m is the mass of the object, and g is the acceleration due to gravity, which is approximately 9.81 m/s² near the Earth's surface. Therefore, even when the box moves to the right, the gravitational force only acts downward.
A scientific theory
1)Holds the highest level of acceptance
2)Explains a number of facts
3)Uses specific hypotheses and descriptive laws that have been well-tested
4)All of the above
5)None of the above
Answer: 4
Explanation: the scientific theory i believe can do all of the answer that are listed above
Answer: 4)All of the above
Explanation:
A scientific theory is the detailed explanation for the cause of natural process, natural event occurring in the world. It can be tested on the basis of the experimental trials, and direct observations. Thus this holds the validity in results and accepted by the entire scientific community.
It holds the highest level of acceptance from all over the world and especially by the scientific communities. It also explains a number of facts those were unknown. The theory is supported by the descriptive laws and a hypothesis is created in before the actual generation of the theory so as to prove the facts experimentally.
If the change in position Dx is related to velocity v (with units of m/s) in the equation Dx=Av, the constant A has which dimension ?
Answer: seconds
Explanation:
We have the following equation:
[tex]Dx=A.V[/tex]
Where [tex]Dx[/tex] has unit of meters ([tex]m[/tex]) and [tex]V[/tex] has units of meters per second ([tex]m/s[/tex]).
If we input these units in the equation, we will have:
[tex]m=A(m/s)[/tex]
Clearing [tex]A[/tex]:
[tex]A=\frac{m.s}{m}=s[/tex]
Hence [tex]A[/tex] is related to time, and its unit in this case is second.
Melanie watched the path a baseball followed after a pitcher threw it. She noticed that the ball traveled horizontally away from the pitcher as well as downward toward the ground. What force caused the ball to accelerate in the downward direction when it was thrown?
Answer:gravity
Explanation:
Gravity is the force that causes a baseball to accelerate downward when thrown, resulting in a constant negative vertical acceleration that contributes to the ball's parabolic trajectory.
Explanation:The force that causes a baseball to accelerate downward when thrown is gravity. Despite the ball traveling horizontally away from the pitcher, gravity acts downwards upon the ball from the moment it leaves the pitcher's hand until it contacts the ground. This creates a parabolic trajectory, characterized by a vertical acceleration that is constant over time, as indicated by the ball's motion being split into two perpendicular components: horizontal motion due to the initial throw, and vertical motion due to the force of gravity.
The graph of the ball's vertical acceleration versus time would show a negative value that remains constant, representing the unchanging acceleration due to gravity in the downward direction, which is typically approximately -9.8 m/s2 near Earth's surface. This downward acceleration is independent of the ball's horizontal velocity.
a substance has a melting point of 0°C and a boiling point of 100°F. The substance is most likely..
1.) Water
2.) Hydrogen
3.) Gold
4.) Table Salt
Graph y=2 line find value of y when x =5
Explanation:
y=2 is a straight horizontal line through the point y=2.
As such for all x-values, the y-value will be the same which is y=2 in this case.
LOOK AT THE EQUATION !
The equation tells everything that Y depends on, and what the exact value of Y is for every possible value of all the things that it depends on.
THIS equation says: "The value of Y depends on '2'. At every moment, no matter what the value of '2' is, Y is equal to it."
The equation tells you that.
So now, we can actually tell the future ! We know that the value of '2' is always going to be TWO. If we use the powerful equation that we have, we know that Y is always going to be TWO.
Does the value of Y depend on the value of X ? If it does, then X must be there on the right side of the equation. But X is not there ! That means that X has no influence on the value of Y. Y is always 2 !
You say X=5 ? That's nice. Who cares ? ! ? It has no influence on Y . Y is ALWAYS 2 .
Pls help I rlly don’t understand
Answer: Over time, the objects velocity or speed over time is gradually increasing. For the second one, the line is also showing that the rate at which the objects velocity is increased is constant, since the slope is constant.
What is a difference between physical traits and personality traits?
A. Physical traits are mainly determined by a person's environment; personality traits are
determined by both a person's genes and environment.
B. Physical traits are mainly determined by a person's genes, personality traits are
determined by both a person's genes and environment.
C. Physical traits are mainly determined by a person's genes and environment;
personality traits not determined by either a person's genes or environment.
D. Physical traits are mainly determined by a person's genes; personality traits are
determined by genetically engineered food that a person eats.
Answer:
A physical trait is visible to the naked eye, such as, having six fingers; and a character trait is invisible to the naked eye, such as, being charming. Both can be subjective, for instance, claiming somebody has a big nose is a subjective comment about somebody's physical appearance.
The difference between physical traits and personality traits are that physical traits are mainly determined by a person’s genes, personality traits are determined by both a person’s genes and environment.
Answer: Option B
Explanation:
Physical traits are facial similarities, body language, nature of hairs and skins. Mostly the face of siblings and the children will have some similarities with their parents or other members in their family.
So, we can say that physical traits are mainly determined by person’s genes. While the personality traits determine a person’s character , hobbies, likes, dislikes, point of view etc.
Thereby, the personality traits will be coming from genes and also from the environment the person has been grown. Both genes and environment effect equally on a persons’ character and personality.
What is needed to create change in a system?
When the volleyball is below your shoulders you need to?
Answer:
You need to Bump the volleyball
hope it helps :)
A human hair is approximately 56 µm in diameter.
Express this diameter in meters.
Answer in units of m
Answer:
The diameter is 0.000056 m
Explanation:
Lets explain the relation between the meter and the micrometer
1 Meter is equal to 1000000 (one million) micrometers
1 micrometer = [tex]\frac{1}{1000000}=\frac{1}{10^{6}}=10^{-6}[/tex]
The symbol of the meter is m
The symbol of micrometer is μm
A human hair is approximately 56 µm in diameter
We need to express this diameter in meter
To do that we divide this number by 1,000,000 or multiply it by [tex]10^{-6}[/tex]
→ [tex]\frac{56}{1000000}=0.000056[/tex] 56 µm = 0.000056 m
→ OR
→ [tex]56*10^{-6}=0.000056[/tex]
→ 56 µm = 0.000056 m
The diameter is 0.000056 m
Which of the following represents the wavelength of a wave?
Diagram of a wave. The point between the highest and lowest points is labeled A; the height is labeled B; the highest point is labeled C; the distance between the highest points of consecutive waves is labeled D.
A
B
C
D
Answer: D. the distance between the highest points of consecutive waves
Explanation:
The wavelength of a wave is defined as the distance traveled by a periodic perturbation that propagates through a medium in a given time interval. It is usually represented by [tex]\lambda[/tex] and can be calculated if the frequency of the wave is known, since there is an inverse relationship between both.
In the specific case of a periodic sine wave (which is the way in which a wave is usually represented graphically) the wavelength can be determined as the distance between two consecutive maxima of the disturbance.
Therefore, the correct option is D.
Answer:
Explanation:
D. the distance between the highest points of consecutive waves
possible data where using a bar graph
would be better than using a line graph.
Answer:
Make a graph that represents exotic pet ownership in the United States. There are 8,000,000 fish, 1,500,000 rabbits, 1,300,000 turtles, 1,000,000 poultry and 900,000 hamsters.
Explanation:
The biggest difference is that bar graphs are more versatile while line graphs are better for showing trends over time or another measure with a logical progression of values (such as distance from a given point). Bar graphs can also show frequency distributions (how often you observe different outcomes) much more effectively than line graphs.
Line charts should be used only for time series (chronological) or when there is some other sequence to the dimensions on the x-axis, e.g. dates, months, sequence of stages of a project, sequence of meters along on a gas pipeline, and they should be used to detect trends and patterns, not to give people exact quantitative readings.
Bar charts should be used for comparing specific x-axis values, though they can certainly be used for time series, like line charts. They can also be used to display parts of a whole in favor of pie charts, in which case, the space between the bars should be reduced.
If a glass is knocked off of a table that is 2.6 m tall, how long does it take for the glass to hit the ground? FILL IN All GUESS STEPS TO GET CREDIT. CHECK EXAMPLE PROBLEM BELOW.
Answer:
0.73 s
Explanation:
The glass is in free fall, so its vertical position at time t is given by the equation:
[tex]y(t) = h + ut + \frac{1}{2}gt^2[/tex]
where
h = 2.6 m is the initial height
u = 0 is the initial velocity of the glass
[tex]g=-9.8 m/s^2[/tex] is the acceleration of gravity (downward since it is negative)
We want to know the time t at which the glass reaches the ground, so when
y(t) = 0
So the equation becomes
[tex]0 = h + \frac{1}{2}gt^2[/tex]
And solving for t, we find
[tex]t=\sqrt{\frac{-2h}{g}}=\sqrt{\frac{-2(2.6)}{-9.8}}=0.73 s[/tex]
Answer:
0.73 sec
Explanation:
formula:X=ViT+(0.5)AT^2
2.6=(0)T+(0.5)(9.8)T^2
cancel:(0)T
2.6=(0.5)(9.8)T^2
take 0.5 to other side and divide with 2.6
5.2=(9.8)T^2
now do the same with 9.8
0.530612 and square root it because u can't leave the T^2
you'll get t=0.73 s
A 50 newton force is required to push a 10 kg box 30 meters across the floor. The box is then lifted up 6 meters and placed on a shelf. How much total work was done?
Answer:
2088 J
Explanation:
Work = net force × distance
When the box is being pushed across the floor, the force is 50 N, and the distance is 30 m.
W = (50 N) (30 m)
W = 1500 J
When the box is being lifted, the force is the weight of the box (10 kg × 9.8 m/s²), and the distance is 6 m.
W = (98 N) (6 m)
W = 588 J
So the total work done is:
W = 1500 J + 588 J
W = 2088 J
the kind of graph that would best show the
results of a survey of 144 people where 75 ride a bus, 45 drive cars,
15 carpool, and 9 walk to work.
Answer:
a bar graph would be the kind of graph that you should use for this problem because it would be easier to read and also do
Explanation
A Pie Chart is the best type of graph to represent the results of this survey, as it visually expresses each commuting mode as a portion of the total survey responses.
Explanation:The type of graph that would present this data most clearly is a Pie Chart. The Pie Chart would provide a visual representation of each commuting method as a proportion of the total survey responses. For instance, the section corresponding to bus riders would be rather large, as 75 out of 144 individuals, or approximately 52% of the participants, use the bus. In contrast, the segment for individuals who walk would be smaller, as 9 out of 144 or about 6% of respondents walk to work. As such, a Pie Chart offers a visual distribution of responses, making it easy to compare different categories.
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What are two examples of observations you might make, and two examples of inferences you might make, when looking at logs burning in a campfire?
Answer:
One observation would be the change in odor when observing the logs burning in a campfire and because of that a inference could be because a change in odor is occurring, a chemical change is happening to the logs (combustion).
A second observation would be that the wood being burned gave off smoke at first but then stopped and because of that a inference would be that the compound that were being burned creating the smoke was all evaporated from the wood.
A force of 15 newtons is applied to both Object A with a mass of 25 kilograms and Object B with a mass of 50 kilograms. What is true about the
acceleration of Object A and Object B?
Answer:
Acceleration of Object A = 0.6 m/s²
Acceleration of Object B = 0.3 m/s²
Acceleration of Object A is double than the acceleration of Object B.
Explanation:
According to the Newton's 2nd law of motion, Acceleration of an object by a net force is directly proportional to the magnitude of that net force and in the direction of that net force and inversely proportional to the mass of the object
Mathematically
F ∝ a
F = ma
Given data:
F = 15 N
m₁ = 25 kg
m₂ = 50 kg
F = m₁a₁
a₁ = F/m₁
a₁ = 15/25
a₁ = 0.6 m/s²
F = m₂a₂
a₂ = F/m₂
a₂ = 15/50
a₂ = 0.3 m/s²
It can be seen that acceleration of Object A is double than the acceleration of Object B.