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Rainbow [258]
2 years ago
5

Have some fr/ee points because i finished highschool today :)

Physics
1 answer:
Aleks04 [339]2 years ago
3 0

Answer:

Thank you :)

Explanation:

And congrats on finishing !!

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Answer:

a is the answer

Explanation:

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An car has an acceleration of 8.0 m/s/s. How much time is needed to reach a velocity of 30 m/s from
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Answer:

3.75s

Explanation:

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A block is balanced on top of a frictionless sphere of radius R. When the block is given a slight nudge it starts to slide down
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Explanation:

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Sphere of Radius R

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When block is just about to leave then N=0

therefore

mg\sin \theta =\frac{mv^2}{R}

v^2=gR\sin \theta-------------------1

Also by conserving Energy we get

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mgh=\frac{mv^2}{2}

here h=vertical distance traveled by block

From diagram

h=R-R\sin \theta

h=R(1-\sin \theta )

mgR(1-\sin \theta )=\frac{mv^2}{2}

2gR(1-\sin \theta )=v^2-----------------2

From 1 and  2

2(1-\sin \theta )=\sin \theta

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Thus from this value of h is

h=R(1-\sin \theta )

h=R(1-\frac{2}{3})

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3 0
3 years ago
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Answer:

A i think tell me if i got it right

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6 0
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wind (b), also some others are:

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