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3 years ago

What is rarefraction

Physics

2 answers:

koban [17]3 years ago

8 0

<span>diminution in the density of something, especially air or a gas.</span>

andreev551 [17]3 years ago

6 0

<span>the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.</span>

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Part A

Makovka662 [10]

Answer:

(A). The magnitude of the momentum of the marble is 0.004745 kg m/s.

(B). The speed of baseball is 23.0 m/s

Explanation:

Given that,

Mass of marble = 0.0073 kg

Speed = 0.65 m/s

(A). We need to calculate the magnitude of the momentum of the marble

Using formula of momentum

$p = mv$

Where, m = mass

v = velocity

Put the value into the formula

$p=0.0073\times0.65$

$p=0.004745\ kg m/s$

(B). Mass of baseball = 0.136 kg

Momentum of baseball = 3.14 kg m/s

We need to calculate the speed of baseball

Using formula of momentum

$p=mv$

$v=\dfrac{p}{m}$

Put the value into the formula

$v=\dfrac{3.14}{0.136}$

$v=23.0\ m/s$

Hence, (A). The magnitude of the momentum of the marble is 0.004745 kg m/s.

(B). The speed of baseball is 23.0 m/s

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3 years ago

What parts make up an atom

hram777 [196]

Answer:

Even though many super-tiny atomic particles exist, you only need to remember the three basic parts of an atom: electrons, protons, and neutrons. What are electrons, protons, and neutrons? Electrons are the smallest of the three particles that make up atoms.

Hit that Brainliest!!

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3 years ago

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At a certain time a particle had a speed of 17 m/s in the positive x direction, and 3.0 s later its speed was 28 m/s in the oppo

dangina [55]

Answer:

i wanna say 11 forgive me if wrong.

Explanation:

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3 years ago

what do radio waves transfer between a cell phone and a cell phone tower? A.Sound. B.Energy. C. the medium D. air particles