In 1971, U. S. astronaut David Scott conducted a simple yet famous experiment on the surface of the moon, where gm = 1.62 m/s² is the magnitude of the gravitational
acceleration, and there is no atmosphere. Specifically, he dropped a hammer and a feather
from rest at the same height above the ground. Assuming that he released the hammer
from a height 1.55 m above the moon's surface, how fast was the hammer moving when
it hit the ground?
A) 0.98 m/s
B) 1.38 m/s
C) 1.91 m/s
D) 2.24 m/s
E) 5.02 m/s

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

What causes the formation of ocean currents?

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?