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Ksivusya [100]
3 years ago
13

Which of the following is the equation for impulse

Physics
1 answer:
anzhelika [568]3 years ago
6 0

Impulse is (force) x (time).

That's the <em>last choice</em> on the list.  It could be 'D', or '4', or 'Δ', or 'ד' etc.

If you play with it for a while, you discover that impulse has the same units as momentum, which certainly gives you something to think about.

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Sierra did 500 J of work to move her couch. If she exerts 250 N of force on the couch, how far did she move it?
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Answer:

2 m

Explanation:

Work = force × distance

500 J = 250 N × d

d = 2 m

She moved the couch 2 meters.

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This diagram represents a top-down view of an experiment on a table. The 250g and 100g masses are falling and are pulling the bl
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A car is moving 18 m/s to the east. if it takes the car 5 seconds to reach a velocity of 19 m/s to the east, what is its acceler
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If y = 0.02 sin (30x – 200t) (SI units), the frequency of the wave is
leva [86]

Answer:

31.831 Hz.

Explanation:

<u>Given:</u>

  • \rm y = 0.02\sin(30x-200 t).

The vertical displacement of a wave is given in generalized form as

\rm y = A\sin(kx -\omega t).

<em>where</em>,

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  • k = wave number of the wave = \dfrac{2\pi }{\lambda}.
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  • x = horizontal displacement of the wave.
  • \omega = angular frequency of the wave = \rm 2\pi f.
  • f = frequency of the wave.
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On comparing the generalized equation with the given equation of the displacement of the wave, we get,

\rm A=0.02.\\k=30.\\\omega =200.\\

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It is the required frequency of the wave.

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