<span>Work: W = Fd. 50(distance) multiplied by 90(force) would equal 4500 J or, answer D</span>
The water creates less friction between your foot and the ground
Answer:
It is another machine that helps the main machine. Hope that helps!
Wind, radiation, and the sun are all factors that change the temperature.
Solar heating of the Earth's surface is uneven because land heats faster than water, and this causes air to warm, expand and rise over land while it cools and sinks over the cooler water surfaces.
Answer:4.39 s
Explanation:
Given
initial velocity 
acceleration 
velocity acquired by sled in
time


distance traveled by sled in 



distance traveled in
time with velocity 




----1


substitute the value of
in 1
we get

thus 
