When there is no air resistance, objects of different masses dropped from rest

a.
fall with equal accelerations and with equal displacements.
b.
fall with different accelerations and with different displacements.
c.
fall with equal accelerations and with different displacements.
d.
fall with different accelerations and with equal displacements.

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

Which transition by an electron will release the greatest amount of energy? oa ob oc od

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?