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3 years ago

9

Which title best fits Rahma's note

2 answers:

Alik [6]3 years ago

5 0

Answer:diffusion

Explanation: it right

Semenov [28]3 years ago

4 0

Answer:

diffusion is the answer.

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A 0.45 kg soccer ball changes its velocity by 20.0 m/s due to a force applied to it in 0.10 seconds. What force was necessary fo

frutty [35]

Answer:

90 N

Explanation:

The force applied to the ball is given by:

$F=\frac{\Delta p}{\Delta t}$

where

$\Delta p$ is the change in momentum of the ball

$\Delta t$ is the time taken

The change on momentum of the ball is:

$\Delta p=m\Delta v=(0.45 kg)(20 m/s)=9 kg m/s$

So, the force applied is

$F=\frac{9 kg m/s}{0.10 s}=90 N$

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3 years ago

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ehidna [41]

30 is the correct answer your looking for

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14) A race car accelerates from rest to a velocity of 41 m/s in 480 m. What is the acceleration of the race car?

natka813 [3]

Answer:

Explanation:

V₀ = 0 m/s

V = 41 m/s

S = 480 m

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a - ?

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The unit for energy is the joule (j). If the energy content of an object is 1,000 J, but then later is found to be 900 J, what i

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Explanation:

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