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katrin2010 [14]

3 years ago

5

An object with a mass of 100 grams is dropped from a certain height and has a velocity of 60 meters/second. if the potential ene

rgy of this object is 179.99 joules, how high was the object when it was dropped?

1 answer:

joja [24]3 years ago

6 0

KE=PE
1/2*m*V^2=mgh
1/2*0.100*(60)^2=0.100*10*h
0.05*3600=h
180 meters=h

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1. The illuminance on a surface is 6 lux and the surface is 4 meters from the light source. What is the intensity of the source?

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<u>Answer</u>

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Q1

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Read 2 more answers

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for the initial spinning condition, we take moment of inertial = I'

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