What is meant by 'wasted energy'?

What is a circuit where there are two or more pathways

How long does it take a car to accelerate from 20 m/s to 40 m/s if it accelerates at 5 m/s2?

Increased risk of liver disease, stroke, and cancer can be caused by

A 2 kg block is on a horizontal surface. A horizontal force is applied by a person to the block to pull it on the surface with an acceleration of 2 m/s. The coefficient of kinetic friction between the box and the surface is 0.3.

If a marble is released from a height of 10 meters how long would it take to hit the ground?

Which of the two resistors dissipates the larger amount of power?

Three students derive the following equations in which x refers to distance traveled, v the speed, a the acceleration (m/s^2), and t the time, and the subscript (0) means a quantity at time t=0: a) x=vt^2 + 2at, b) x=v0t+1/2at^2, and c) x=v0t+2at^2.

Which is a use of fiber optics?

When a positively charged conductor touches a neutral conductor, the neutral conductor will:

Definition of the rule E=mc^2