A boy and his bicycle have a total mass of 40 kg. at the top of the hill his speed is 5ms -1 and his speed doubles at the bottom of the hill. The hill is 10 metre height. Calculate
a)the total energy at the top of the hill
b) the total energy at the bottom of the hill
c) the energy lost due to friction

d.7.5cm is your answer

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

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the speed of the cart after 3 seconds of low fan speed is ⇒ 54.0 cm/s.

the speed of the cart after 5 seconds of medium fan speed is ⇒ 120.0 cm/s.

the speed of the cart after 2 seconds of high fan speed is ⇒ 64.0 cm/s. 

just did the lab.