The total amount of energy before and after a chemical reaction is the same thus energy is,

What is the difference between V (peak voltage) and Vrms (root-mean-square) of AC voltage source?

A ball is thrown from the top of one building toward a tall building 50 m away. The initial velocity of the ball is 20 m/s at 40° above the horizontal. How far above or below its original level will the ball strike the opposite wall?

Which best describes the second law of thermodynamics? energy is not created nor destroyed, but it can change into matter. energy is not created nor destroyed, but it can change from one energy form to another.

What will happen to a periodic wave acted upon an external damping force?

Laser light is high powered, directional, coherent, and has a double wavelength. true or false.

1. A 2000kg truck at rest accelerates to 45m/s in 7 seconds. What is its change in kinetic energy?

The speed with which force is developed by skeletal muscles is determined by the

What aviation first is paul maccready credited with

Why is the use of an international system of measurement important for science?

Would u do more lifting putting a box on the table or putting it on a shelf