Select the correct answer.

Which quantity is a scalar quantity?

A.

acceleration

OB.

area

displacement

D.

force

velocity

Formula for electrostatic potential energy between two charged particles change if one particles 's charge is reduced to a factor of 3?

How much voltage can be stored in a thundercloud?

Explain the statement "the lower down in the food chain we eat, the greater percentage of solar energy we put to use, and the more people Earth can support" in terms of trophic levels and pyramids of energy.

Calculate the gravitational potential energy of the interacting pair of the Earth and a 11 kg block sitting on the surface of the Earth.

A provides resistance in an electric circuit. a. wire b. light bulb c. switch. d. battry

Which of these statements best describes a similarity between the two galaxies? Both have elongated centers. Both have centers shaped like bars. Both change their shape from time to time. Both are held together by gravitational forces.

The part of the earth system that includes earths solid, rocky, outer layer is the

A child pushes horizontally on a box of mass m which moves with constant speed v across a horizontal floor. The coefficient of friction between the box and the floor is μ. At what rate does the child do work on the box?

What does offset mean

How far can a person run in 15 minutes if he or she runs at an average speed of 16 kilometers / hours?