You are standing on a cliff and kick a rock of the side of the cliff. if it takes 21 secs for the rock
to fall to the ground, what was the height of the cliff?
do not use a negative value for height of the cliff.

Current 1 of 8.4 a runs for 240 seconds and then stops. current 2 is 10.5 a. how long does current 2 have to un to deliver the same amount of charge as current 1? 88.28 192 s 2016 s 21,000 s

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.

J. j. thomson’s experiment disproved the theory that an atom