The input work done on a pulley system is 450J. What is the efficiency of the pulley system if the output work is 375J

An element like silicone is not usually used to make wires or pains because it

You and a friend each drive 53 km to the same destination. You travel at 88.8 km/h and your friend at 92.6 km/h. How long will your friend wait for you at the end of the trip?

How does a force fields work how do you make your own force field

Identify the type of energy stored in a stretched bungee cord.?

What is the quickest way to die, according to science?

An object moves with velocity v (t) = t^2-8t+7 a) write a polynomial expression for the position of the particle at any time t greater or equal to zero.

Is a lack of thorns a mutation? (on a plant)

Why is the motion of an athlete moving along the circular path with Constant speed considered to be an accelerated motion?

What is a characteristic of atoms

A doctor uses an instrument (s) that emits light and allows the doctor to view the inside of a patient's intestine. What is the doctor most likely using? - a telescope, a microscope, laser beams, or fiber optics