A car travels straight for 20 miles on a road that is 30 degrees north of east what is the east component of the cars displacement to the nearest tenth of a mile

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Answer 1

17.3 boiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Related Questions

The difference in potential between the cathode and anode of a spark plug is 14700 v. what energy does the electron give up as it passes between the electrodes? answer in units of j.

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The energy the electron gives up passing between the electrodes is equal to the product between its charge and the potential difference between the electrodes:
[tex]\Delta U = e \Delta V[/tex]
where
e is the electron charge
[tex]\Delta V[/tex] is the potential difference

Plugging numbers into the equation, we find that the electron gives up is
[tex]\Delta U = (1.6 \cdot 10^{-19} C)(14700 V)=2.35 \cdot 10^{-15} J[/tex]

Sully is riding a snowmobile on a flat, snow-covered surface with a constant velocity of 10 meters/second. The total mass of the snowmobile, including Sully, is 280 kilograms. If Sully accelerates to a velocity of 16 meters/second over 10 seconds, what’s the force exerted by the snowmobile to accelerate? Use F = ma, where . 160 N 168 N 248 N 280 N 324 N

Answers

Answer: 168N

16 - 10 = 6
6 / 10 = .6
F = 280 x .6 = 168

16 - 10 = 6
6 / 10 = .6 (this sign / means to divide)
F = 280 x .6 = 168

Velocity is the change of speed and/or direction of An object true or false

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False.
I hope this helps! :)

No.
CHANGE of speed or direction is the object's acceleration.
Velocity is the speed and direction themselves, without change.

What does this graph show about the relationship between mass and acceleration? As acceleration increases, mass increases. As acceleration increases, mass is unaffected. As mass is unaffected, acceleration decreases. As mass increases, acceleration decreases.

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Describe the relationship between net force and acceleration when mass is held constant. The relationship is directly proportional. This means when net force increases so does acceleration. ... B. Graph the line of Fn (net force) and A (acceleration).

D. as mass increases, acceleration decreases.

if energy is absorbed because of a chemical reaction the reaction is ____. a product, exothermic, limiting, endothermic.

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If energy is absorbed because of a chemical reaction the reaction is Endothermic.

Answer: Option D

Explanation:

There are two types of chemical reaction depending upon whether the energy is absorbed or released to the surroundings. When the energy is absorbed in a reaction from the surroundings it is called as an endothermic reaction and the temperature of the surroundings gets affected.

When the opposite reaction occurs in the surroundings, it is called as an exothermic reaction. Option A and B are irrelevant to the situation here. So if the energy is absorbed because of a chemical reaction then the reaction is said to be endothermic.

which direction will the magnetometer read for earth’s magnetic field when the satellite passes over earths equator ?

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Earth's magnetic field is represented as lines of force appearing straight up from one pole towards the other pole, following the curvature and bending back down towards the Earth as they near the pole at the other end. The pointers on your satellite will continually align themselves with these lines of force. Thus, near either pole, the pointers will point downward, toward the Earth. Near the equator, they will point more or less horizontally, parallel to the Earth. The satellite should be made of nonmagnetic materials, so as not to conduct electricity.

Final answer:

A magnetometer over the Earth's equator will detect Earth's magnetic field as a horizontal line pointing northward. As one moves west along the equator, the detected orientation of the magnetic field by the magnetometer remains constant due to the parallel nature of the magnetic field lines at this latitude.

Explanation:

When a satellite equipped with a magnetometer passes directly over the Earth's equator, the primary direction the magnetometer will read for the Earth's magnetic field is horizontal and points towards the magnetic north pole. Since we are assuming the Earth's magnetic north is aligned with the geographic north pole, the magnetometer reading will be directed northward, perpendicular to the equator.

As the student or satellite moves west along the equator, the orientation of the magnetic field detected by the compass or magnetometer would not significantly change. This is because at the equator, the Earth's magnetic field lines are parallel to the Earth's surface, resulting in a compass needle aligning horizontally and pointing towards the north pole. Even while travelling, this horizontal alignment remains constant all along the equator.

Remember, magnetic field lines around a magnetic source, like Earth, follow a path from the magnetic north pole to the magnetic south pole. Also, a compass needle aligns itself with the local magnetic field lines. At the equator, these lines are parallel to the ground, dictating the needle's orientation.

What is a half circle that extends from the north pole to the south pole?

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I believe the answer is meridian. "A (geographical) meridian (or line of longitude) is the half of an imaginary great circle on the Earth's surface, terminated by the North Pole and the South Pole, connecting points of equal longitude." -wikipedia

The lowest surface temperature yet measured on anybody in the solar system is negative 200 degrees celsius occurring on

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The answer is C. Triton

Which property of an optical telescope is associated with sharper images?

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The answer is Resolving power. Resolving Power of an optical telescope is associated with sharper images. It also depend upon the size of the objective (the primary lens or mirror that collects and focuses the light) The larger the objective, the more light the telescope collects and the finer detail it resolves..

Can someone explain to me #4.

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a) We balance the masses: 4(1.00728) vs 4.0015 + 2(0.00055)4.02912 vs. 4.0026This shows a "reduced mass" of 4.02912 - 4.0026 = 0.02652 amu. This is also equivalent to 0.02652/6.02E23 = 4.41E-26 g = 4.41E-29 kg.
b) Using E = mc^2, where c is the speed of light, multiplying 4.41E-29 kg by (3E8 m/s)^2 gives 3.96E-12 J of energy.
c) Since in the original equation, there is only 1 helium atom, we multiply the energy result in b) by 9.21E19 to get 3.65E8 J of energy, or 365 MJ of energy.

How much energy from the sun actually reaches the corn answer?

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The energy from the sun that reaches the corn is about two billionths.

Answer:

It depends upon the sunlight intensity known as ALBEDO, the amount of energy used by photosynthesis and the chemical composition of corn.

Explanation:

Albedo is a measure of the amount of light reflected from an object. Albedo is normally expressed as a decimal value representing the percentage of light reflected.

Photosynthesis, a biological process, uses the energy of sunlight to manufacture sugar, which serves as the universal food for life. Oxygen produced as a product of photosynthesis is released into the environment.

The formula for this reaction is:

6CO2 + 6H2O + sunlight energy → C6H12O6 + 6O2

• where CO2 represents carbon dioxide

• H2O represents water

• C6H12O6 represents the sugar molecules (carbohydrate)

• and O2 represents oxygen

What is the intensity of sound waves produced by a trumpet at a distance of 1.6 m when the power output of the trumpet is 0.30 w?

Answers

The intensity of a wave is given by the ratio between the power P of the source and the surface A over which it is calculated:
[tex]I= \frac{P}{A} [/tex]

For the sound wave in this problem, the power is P=0.30 W. Since a sound wave propagates radially, the area that we should use is the surface of of a sphere with radius r=1.6 m:
[tex]A=4 \pi r^2 = 4 \pi (1.6 m)^2 =32.15 m^2[/tex]

Therefore, the intensity is
[tex]I= \frac{P}{A}= \frac{0.30 W}{32.15 m^2}=9.33 \cdot 10^{-3} W/m^2 [/tex]

The intensity of the sound waves at a distance of 1.6 meters from the trumpet is approximately[tex]\( 9.325 \times 10^{-3} \)[/tex] watts per square meter.

The intensity of the sound waves produced by the trumpet at a distance of 1.6 meters is given by the formula:

[tex]\[ I = \frac{P}{A} \][/tex]

The area of a sphere is given by [tex]\( A = 4\pi r^2 \)[/tex], where r is the radius of the sphere.

Given:

- Power output of the trumpet, [tex]\( P = 0.30 \)[/tex] watts

- Distance from the trumpet, [tex]\( r = 1.6 \)[/tex] meters

First, we calculate the area A through which the sound waves are spreading at a distance of 1.6 meters:

[tex]\[ A = 4\pi r^2 = 4\pi (1.6)^2 \][/tex]

[tex]\[ A = 4\pi (2.56) \][/tex]

[tex]\[ A = 4\pi \times 2.56 \][/tex]

[tex]\[ A \ = 4 \times 3.14159 \times 2.56 \][/tex]

[tex]\[ A \ = 32.17 \][/tex]

Now, we calculate the intensity I:

[tex]\[ I = \frac{P}{A} \][/tex]

[tex]\[ I = \frac{0.30}{32.17} \][/tex]

[tex]\[ I \ = \frac{0.30}{32.17} \][/tex]

[tex]\[ I \ = 0.009325 \][/tex]

[tex]\[ I \ = 9.325 \times 10^{-3} \][/tex]

The energy gained by electrons as they are accelerated by an electric field is

Answers

The energy gained by an electron as it is accelerated by an electric field is equal to the work done by the electric field itself, and this is equal to the product between the charge of the electron and the potential difference across which the electron traveled:
[tex]\Delta U = W = e \Delta V[/tex] (1)
where e is the electron charge, and [tex]\Delta V[/tex] is the potential difference between the initial and the final point of the electron, and this is equal to
[tex]\Delta V = Ed[/tex] (2)
where E is the intensity of the electric field and d is the distance covered by the electron. If we substitute (2) into (1), we find a final expression for the energy gained by the electron
[tex]\Delta U = e E d[/tex]

How many coulombs of charge are needed to produce 29.1 mol of solid zinc?

Answers

The chemical equation in this case is given by:

Zn (2+) + 2e (-) ------> Zn

It can be noted that 1 mole of Zn is produced by 2 Faraday of electricity.
For 29.1 moles,
Total charge required = 2*29.1 = 58.2 F

But, 1F = 96500 C
Then,
Amount of charge required = 96500*58.2 = 5,616,300 C

Final answer:

To produce 29.1 mol of solid zinc, approximately 2801443.5 Coulombs of charge are needed.

Explanation:

To calculate the number of coulombs of charge needed to produce 29.1 mol of solid zinc, we need to use Faraday's constant, which is approximately 96485 C/mol.

Charge (in coulombs) = Faraday's constant x number of moles of substance

In this case, Charge = 96485 C/mol x 29.1 mol = 2801443.5 C.

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Four beats per second are heard when an unknown tuning fork and a 240 Hz tuning fork are struck simultaneously. This same unknown tuning fork and a 250 Hz tuning fork are struck. Six beats are heard. Its exact frequency?

Answers

The absolute difference between two frequencies is referred to as beat frequency. That is,
fb = |f2-f1|

In this case, the frequency of unknown fork must be between 240 Hz and 250 Hz. Then,

4 = x - 240 => x = 240+4 = 244 Hz
This is true since;
6 = 250 - 244 (given in the second case).

Therefore, the unknown frequency is 244 Hz.

the atomic mass is important because?
a. it tells you the size of the atom
b.it tells you the number of electrons

Answers

B is correct answer.

The atomic mass is the most important because it tells you the number of electrons.

Hope it helped you.

-Charlie

b.it tells you the number of electrons

According to lenz's law, the magnetic field of an induced current in a conductor will

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According to lenz's law, the magnetic field of an induced current in a conductor will have a direction such that it opposes the change in magnetic flux through the area enclosed by the conductor itself.

In other words: if the magnetic flux through the area enclosed by the conductor is increasing, then the direction of the induced current will be such that the magnetic field produced by this current will oppose this increasing of magnetic flux (so, the induced magnetic field will be directed in the opposite direction of the initial magnetic field).
Vice-versa, if the magnetic flux through the area enclosed by the conductor is decreasing, then the direction of the induced current will be such that the magnetic field produced by this current will oppose this decreasing of magnetic flux (so, the induced magnetic field will be directed in the same direction as the initial magnetic field).

Lenz's law states that the magnetic field produced by an induced current in a conductor opposes the change in the external magnetic field that caused the induced current. This behavior is a consequence of energy conservation and serves to maintain a constant magnetic flux through the conductor.

Lenz's Law and Induced Current

According to Lenz's law, the magnetic field of an induced current in a conductor will oppose the change that induced it. When the magnetic flux through a conductor changes, it induces an electromotive force (emf) and, consequently, a current in the conductor.

This induced current generates its own magnetic field. The direction of this induced magnetic field is such that it opposes the change in the external magnetic field that caused the induction. For instance, if the magnetic field within a loop is increasing, the induced current will flow in a direction that creates a magnetic field opposing the increase, preserving the magnetic flux.

If the original magnetic field is decreasing, the induced current will produce a magnetic field that reinforces the original field, again opposing the decrease in flux. This opposition is part of the conservation of energy, ensuring that the system does not create or destroy energy, thus preventing a perpetual motion scenario. Overall, Lenz's Law is a manifestation of the conservation laws in electromagnetism.

You can see a clock in a spaceship moving past you at 90 percent of the speed of light. according to you, how much time would pass while the clock in the spaceship ticked through one minute?

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[tex]t = \gamma\tau, \textnormal{ where } \gamma \equiv \frac{1}{\sqrt{1-\frac{v^2}{c^2}}}, \textnormal{ }\tau \textnormal{ is the proper time 60s} \\ t = \frac{60s}{\sqrt{1-0.9^2}} = 137.65s \textnormal{ } (5 s.f.)[/tex]

Carter pushes a bag full of basketball jerseys across the gym floor. The bag weighs 21 newtons. If he pushes the bag 9 meters in 3 seconds, how much power does he use? (Hint: 1 watt = 1 .)

Answers

Power= Force times distance divided by time.
P=?
F= 21 N
D= 9 m
T= 3 s
P=Fd/t
P=21*9/3
P= 63 W

1. How will the ice water mix with the salty water? Write your hypothesis below.

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Answer: If the ice is mixed in with the salty water then, the ice will melt slower

Explanation:

The application of salt actually causes ice to melt because a solution of water as well as disbanded salt has a lower freezing point than pure water.

What is freezing point?

The temperature at which water freezes is referred to as the freezing point. When discussing the weather, the term "freezing point" is frequently used.

Throughout the day, the temperature remained below freezing. A substance's freezing point is the temperature at which it freezes.

A melting point is the temperature at which a solid transforms into a liquid under normal atmospheric pressure.

Melting is actually slowed in a salty liquid because the cold melted water sits on top of the denser salty water. This prevents heat from rapidly reaching the ice.

The implementation of salt causes severe ice to melt because a solution of water and dissolved salt does have a lower freezing point than distilled water.

When ice comes into contact with salty water, it melts, releasing more liquid water, which dissolves more salt, causing more ice to melt, and so on.

Thus, this way salt acts on the ice.

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Which property of matter allows convection currents to form? Fluids rise if they are less dense than the matter around them. The molecules in solids do not vibrate very quickly. Electromagnetic waves carry energy. Liquids take the shape of their container.

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the answer is a : fluids rise if they are less dense than the matter around them ! i hope this helped, despite being so late

What is the biggest star in our solar system?

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The Biggest star in our universe is the sun. Although the largest in the galaxy is the VY Canis Majoris which is about 3,900 to 5000 light years away from us.

The biggest star in our solar system is the sun. It's also the smallest one, because it's the only one.

A sound wave of frequency 440 hz travels at a speed of 344m/s through the air in a concert hall. how fast would a note one octave higher, 880hz travel through the same concert hall?

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The speed of a sound wave does not depend on the frequency of the wave, but only on the properties of the medium.

Since we are in the same concert all, the medium of propagation is still the same (the air), so it has not changed; therefore, the speed of the sound wave has not changed, and it is still 344 m/s.

So, the correct answer is "344 m/s".

In Milgram's experiment:

A. the "learner" sometimes had lasting injuries.
B. two-thirds of people refused to participate.
C. almost no one went to 450 volts.
D. almost two-thirds of participants went all the way to 450 volts.

Answers

D is most likely the answer.

Hope this Helped!

;D

In Milgram's experiment: Almost two-thirds of participants went all the way to 450 volts. (option D)

What is Milgram's experiment?

In Milgram's experiment on obedience, participants were instructed to administer electric shocks to a "learner" (a confederate) whenever they answered questions incorrectly.

Contrary to expectations, almost two-thirds of the participants continued to administer shocks up to the maximum voltage of 450 volts, despite the learner's apparent distress.

This shocking result revealed the extent to which people can follow authority figures, even when it involves causing harm to others, highlighting the power of social influence and obedience.

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a proton is moving horizontally at 7.9 x 10^5 m/s. It passes through a vertical magnetic field that points downward. In which direction is the proton deflected by the magnetic field? A. up B. to the right of its velocity C. down D. to the left of its velocity

Answers

There are four key characteristics of the magnetic force on a moving charge.

First, Its magnitude is proportional to the magnitude of the charge.
Second, the magnitude of the force is also proportional
Third, the magnetic force depends on the particle’s
velocity.
Fourth, we find by experiment that the magnetic force [tex]\vec{F}[/tex] does not have the same direction as the magnetic field [tex]\vec{F}[/tex] but instead is always perpendicular to both [tex]\vec{B}[/tex] and the velocity [tex]\vec{v}[/tex]

So, in a mathematical language this is given by:

[tex]\vec{F}=q\vec{v} \times \vec{B}[/tex]

So, this is a cross product. Therefore, applying the Right-hand rule:

The answer is:

D. to the left of its velocity.

Explaining this in other words:

"The force [tex]\vec{F}[/tex] is directed into the plane of the paper, so this is the direction of the proton"

a person standing in the ocean notices that after a wave crest passes by ten more crest pass in a time of 120s what is the frequency

Answers

The frequency of a wave is defined as the number of complete oscillations per unit of time:
[tex]f= \frac{N}{t} [/tex]
For the wave in this problem, we have 10 oscillations (because 10 crests pass through a given point in space) in a time of 120 s, therefore the frequency of the wave is
[tex]f= \frac{10}{120 s}=0.083 Hz [/tex]

If the spectrum of a star is blue shifted, which way is the star moving?

Answers

This shifts the star's spectral lines toward the blue end of the spectrum. If the star ismoving away from us, its waves are effectively stretched out when they reach Earth, increasing their wavelength. This shifts the star's spectral lines toward the red end of the spectrum.

if it's blue shifted, the star is moving towards us

The moon most likely formed

A. From a collision of Earth with a Mars-sized object.
B. In another region of space and drifted toward Earth.
C. From material in the solar system that came together.
D. In the same way as Earth formed.

Answers

A from a collision from a mars sized object

for the earth moon systems the answers are

d
b
a
d
d

Which prefix is needed when naming SO3? A. tri- B. penta- C. mono- D. di-

Answers

Hello there, and thank you for posting your question here on brainly.

Answer: A. tri- because the scientific name for it is 'Sulfur Trioxide', it also has a 3 in the name. Tri means 3.

Hope this helped you! ♥

Answer:

A). tri-

Explanation:

As we know that here in the given compound we have one sulfur and three oxygen atoms.

So here in this nomenclature we can say that

one = mono

two = di

three = tri

five = penta

so above are the different prefix which we will use in different cases when atoms are arranged in different numbers.

Since we have three atoms here for oxygen so the prefix must be "tri" here in this case

A humming bird feeder is tied by a rope to a tree branch. You notice that in a gentle breeze, the feeder moves back and forth 15 times in 1 minute. How long is the rope?

Answers

With the fifteen cycles in one minute, you can first get the frequency of this pendulum which is in cycles per second or 1/4. Frequency is 1/ period so your period length is 4 you then use the period length of a pendulum equation solving for length. (equation: Period Length = 2[tex] \pi [/tex][tex] \sqrt{\frac{Length}{Gravity} } [/tex]. The length of the rope is 3.97 or about 4 meters. ( the question never asked what unit the rope is measured in, but I'm assuming it wanted meters)

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