Answer:
W = 14523.6 J
Explanation:
Given,
Mass = 3.9 Kg
Vertical height , h = 380 m
Work done against gravitational force
W = m g h
g is acceleration due to gravity
W = 3.9 x 9.8 x 380
W = 14523.6 J
Hence, the work done by the gravitational force is equal to W = 14523.6 J
I'm not posotive but I think the answer is
b. atmosphere
Friction is the resistance of motion. Which means when resistance applies it makes friction which makes friction force.
<span>The element with an atomic mass of 16 is Oxygen(O).</span>
