Which describes the use of a nonrenewable energy source?

burning coal to create steam in power plants

turning turbines with water held behind dams

burning plant wastes to run generators

The nucleus of a copper atom has 29 protons and 35 neutrons. What is the total charge of the nucleus?

What are the coefficients in the equation for the magnetic field component of the wave after the period increases by a factor of 2.

A material transmits some of the light that reaches it, and objects behind the material appear blurred. what type of material is it?

When electrons are passed through a crystal, they form a pattern on the other side that is very similar to a wave-interference pattern. What can we conclude from this result?

If 5.0 x 10^21 electrons pass through a 20-Ω resistor in 10 min, what is the potential difference across the resistor?

The magnetic field in a solenoid is. A circular wire of radius 8 cm is concentric with a solenoid of radius 2 cm and length d = 2 meter, containing 12000 turns. The current increases at a rate of 40 A/s. What is the emf in the wire?

1.) State which definition of power below is correct. A.) the energy transferred per hour. B.) the energy transferred. C.) the energy transferred per second. D.) the force over a distance. 2.

Which types of matter are made of atoms

What are some examples of uniform motion

If cable cb is subjected to a tension that is twice that of cable ca, determine the angle u for equilibrium of the 10-kg cylinder. also, what are the tensions in wires ca and cb?