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3 years ago

5

A system consisting of two particles is known to have zero total momentum. Does it follow that the kinetic energy of the system

is zero as well?

1 answer:

Maru [420]3 years ago

4 0

Answer:

all of the particles are at rest (v = 0)

Explanation:

Therefore, since nothing is moving, the total momentum of the system must also be zero.

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What is the speed of a wave if the wavelength is 200 m and the period is 20 s?

goblinko [34]

Here is your answer

We know that

Velocity = Wavelength/Time period

Here,

Wavelength = 200m

Time period= 20 secs

So,

Velocity= 200/20 m/s

v= 10m/s

HOPE IT IS USEFUL

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3 years ago

A copper sphere was moving at 25 m/s when it hit another object. this caused all of the ke to be converted into thermal energy f

muminat

ΔT= 81°C was the increase in temperature.

<h3>steps</h3>

As evidenced by energy conservation

To increase its temperature, all of its kinetic energy will be converted to thermal energy.

$\frac{1}{2}mv ^{2} = ms$ ΔT

then divide both sides by the object's mass.

$\frac{1}{2} v^{2} =s$ ΔT

therefore, a temperature shift is described as

ΔT= $V^{2} /2s$

ΔT= $25^{2}$ / 2 x 387

ΔT= 81°C

ΔT= 81°C was the increase in temperature.

learn more about increase in temperature here

<u>brainly.com/question/14319779</u>

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1 year ago

A truck going 15 kmôŹ°€h has a head-on collision with a small car going 30 kmôŹ°€h. Which statement best describes the situation

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1. e) None of the above is necessarily true.

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What is the key topic to consider when researching a potential employer

miss Akunina [59]

Answer:

check out the website

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3 years ago

Help immediately please

icang [17]

Answer:

Speed is a measure of how quickly an object moves from one place to another. It is equal to the distance traveled divided by the time.

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3 years ago