What is the key variable for calculating potential energy

Why is the term impulsive of force coined

Two students suggest different functions for the battery plays a flashlight. Student A: "The battery supplies the charge which allows the light bulb to light. When the battery no longer works, it is because it has run out of charge.

The amount of force needed to sustain motion of a rock in outer space is

Lincoln weighs 400 newtons. What's his mass rounded to the nearest kilogram? Assume that acceleration due to gravity is 9.8 N/kg.

Derive a relation between velocity, frequency and wavelength of a wave. Write a formula relating velocity of a wave to its time period and wavelength.

The liquid electrolyte in the battery typically takes what kind of net charge? a. positive b. negative c. neutral

Relating to Newton's Third Law, action and reaction, what is the reaction when a rocket expels gas, smoke and flames from the nozzle end of the rocket engine?

Three light bulbs are connected to a battery in a series circuit. How will the bulbs behave if the circuit is closed?

Luke investigated the heating of water

In the nucleus of all atoms are sub-atomic particles called protons and neutrons. all protons have a positive charge.