According to Newton's Third Law of Motion, what happens when two objects of unequal masses collide? A.
The object with the larger mass will have greater damage.

B.
The object with the smaller mass will continue forward due to inertia.

C.
They will push away from each other in proportion to their masses.

D.
They will both make a sudden stop.

Answers

Answer 1

Answer: Newton's third law is that for every action, there is an equal and opposite reaction.
A Damage is not a part of physics, at least I don't think it is.
B Is just downright wrong. If anything, the smaller mass will be pushed forward with the heavier mass.
C Sounds correct
D It's wrong, because the masses are not equal, or else they would stop.

Answer:

On a velocity time graph like this one, the slope tells you the acceleration of object.

Explanation:

On a velocity time graph, velocity is on y-axis while time on x-axis.
Slope on graph shows the change in velocity with time which is equal to the acceleration of object.

Acceleration

On a velocity time graph, the y-axis is velocity, and the x-axis is time. So the slope is the change in velocity for every unit of change in time.

acceleration- the rate of change of velocity per unit of time.

hope this helps :)

What's the answer to this problem?

Answers

Acceleration = (change in speed) / (time for the change)

Acceleration = (12.15 - 0) / 4.5 = 2.7 meters per second²

15) What is the frequency of a pendulum that is moving at 30 m/s with a wavelength of .35 m?show step by step

Answers

We know that there is a formula velocity = frequency x wavelength for all types of waves.

If we assume one complete oscillation of a pendulum to be wavelength we can apply the above formula for the pendulum too.

So as v = fλ and f = v/λ we can just plug in the values to get our answer of frequency.

So frequency = 30/0.35 which is equal to 85.17 Hertz (Hz).

I think you're trying to take the formulas for speed, wavelength, and
frequency of a wave, and apply them to a pendulum. You can't do that.
It doesn't work.

A pendulum is moving in 'simple harmonic motion', not wave motion.
It's speed is continuously changing, from zero at both ends of its swing,
to maximum as it passes through the 'rest' position at the bottom. And
there's no wavelength defined for a pendulum ... if you're thinking that
it could be the distance from end to end of its swing, or maybe half of
that, you should know that the frequency of an ideal simple pendulum
is not related to that distance at all.

Finally, in the real world, the numbers in this question really kind of
don't make any sense. You have a structure where some part of it is
roughly a foot long (0.35m = 13.8 inches), and at least at some point
during its swing, something is moving at 30 m/s ... about 67 mph !
If something like that could even stay on the table, and IF its frequency
were (speed/wavelength) ... like a wave's frequency is ... then its frequency
would be (30 / 0.35) = 85.7 Hz ! ! The thing would be wiggling back and
forth every 0.017 second ! It would need to be operated only inside
a bomb shelter, with all personnel withdrawn beyond a safe perimeter
before it flies apart and scatters shrapnel everywhere.

You are standing 100 Meters away from your car when an alligator appears 20meters away from you on the opposite side and you start to run with a speed of 5m/s while the alligator's speed was 8m/s towards you. Will you reach your car before the alligator reaches you? Why?

Answers

Pretty sure you'd be a dead man. Let's break this up shall we?

So if you're running @ 5 m/s at a distance of 100m, then it'll take you 20 seconds to get to the car. This is because distance/velocity=time. ••••• Now the Alligator is another story. He has to run 20m+100m and he runs @ 8 m/s. Using the same equation again, d/v= time, you will find that it takes the alligator 15 seconds to get to your car. So if it takes 20 secs for you to get to safety, and 15 secs for the alligator to maul you, if say you would die.

How do we end up "seeing" a right-side up world?

Answers

I think you must be referring to the fact that our eyes invert the image, so that
the image on the retina is upside-down, and that worries you.

The answer is: It's all easily handled by that glob of gray stuff inside our head.
The brain takes the inverted image, and responds to it as if it were right-side-up.

That sounds complicated and difficult, because we have no idea how terrific
our brain really is. So let me tell you this story, and it'll blow your mind:

When psychologists realized that the brain was turning everything we see
right-side-up, they did an experiment. They had some special glasses made,
that would turn everything upside-down before it went into the eyes, so that
the image on the retina would be right-side-up, and the person would see
everything upside-down. Then they had some people try to go through their
normal activities with these glasses on. Want to know what happened ?
The test subjects were pretty awkward at first, tripping over things and
bumping into walls. But after a few days, their brain made the adjustment,
and they didn't notice anything strange any more. They could read books,
wash the dishes, play ball, and most of them were even able to ride bicycles
around their neighborhood in the normal way ! Then, when the experiment
was over, they took the glasses off, and they were awkward again for a few
days, and then their brains flipped everything over again and they got
re-adjusted to normal.

THAT's how clever our brain is !

1) A sound wave with a frequency of 300 hertz is traveling through a medium at a speed of 320 meters/second. What is its wavelength? 2) A sound wave has a wavelength of 0.450 meters. If its speed in cold air is 330 meters/second, what is the wave's frequency?
a.0.890hertz
b.100hertz
c.230hertz
d.733

Answers

1. The wavelength is the ratio of the wave's speed to its frequency in hertz or 1/s. This is shown below,
λ = s / f = (320 m/s) / (300 1/s) = 1.07 m
The wavelength is approximately 1.07 m.

2. The frequency is the ratio between speed and the wavelength,
f = (330 m/s) / 0.45 m = 733.33 hertz

1. The wavelength is the ratio of the wave's speed to its frequency in hertz or 1/s. This is shown below,

λ = s / f = (320 m/s) / (300 1/s) = 1.07 m

The wavelength is approximately 1.07 m.

2. The frequency is the ratio between speed and the wavelength,

f = (330 m/s) / 0.45 m = 733.33 hertz

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