Which of the following is the reason for the widespread use of fossil fuels? O A. They contain a great deal of energy.
o B. They are a renewable source of energy.
C. They are not harmful to the environment.
D. They are usually found in a liquid form.

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.