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2 years ago

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A skier has an acceleration of 2.5 m/s2. How long does it take her to come to a complete stop from a speed of 18 m/s? A. 3.4 s B

. 7.2 s C. 15.5 s D. 0.14 s

1 answer:

noname [10]2 years ago

6 0

The question is defective. If her acceleration is 2.5 m/s/s, then her speed is 2.5 m FASTER each second, and she will never stop.

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A sled with no initial velocity accelerates at a rate of 3.2 m/s2 down a hill. How long does it take the sled to go 15 m to the

grin007 [14]

S = ut + 1/2 at^2
a = 3.2 m/s^2
s = 15m
Find t
15 = 1/2(3.2)t^2
15 = 3.2t^2/2
30 = 3.2t^2
30/ 3.2 = 9.38
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2 years ago

What is amu?? How is 1amu=1.606*10*-27?

navik [9.2K]

Answer:

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1 year ago

A mouse is running across a room with a speed of 2.2 m/s. The mass of the mouse is 1.4 kg. What is the Kinetic Energy of the mou

valina [46]

Answer:

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Explanation:

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m is the mass

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From the question we have

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We have the final answer as

<h3>3.39 J</h3>

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2 years ago

Read 2 more answers

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andriy [413]

Answer:

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Explanation:

given data:

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and $tan \theta = \frac{y}{ D}$

$\theta = tan^{-1}\frac{(y }{D})$

= 0.0924 degrees

plug theta value in equation 1 we get

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$d sin \theta =\frac{λ'}{2}$

$\lambda '= 2 d sin\theta$

= 2λ since from eq (1)

= 1220 nm

= 1.22 μm

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2 years ago

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Nostrana [21]

Answer:

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2 years ago