A ferromagnetic material that has domains that remain aligned for a long period of time is called

A. a neutral object.

B. nonmagnetic.

C. a permanent magnet.

D. a temporary magnet.

Heat generally what? A. Flows from hot to cold B. Flows from cold to hot C. Flows within and not between objects D. Does not move

An electromagnetic wave is a mechanical wave. O A. True O B. False

The intensity of the sun's radiation incident upon the earth is about i=1.4kw/m2. suppose this is the value for the intensity of sunlight incident upon the satellite's solar panels. what is the total solar power p absorbed by the panels?

Why is foam a good insulator?

28. the maximum distance that the particles of a medium move from the rest position is the a. amplitude of the wave. b. wavelength of the wave. c. frequency of the wave. d. speed of the wave

Which of the following statements describe sliding friction? Select all that apply. 1.) a force that causes an object to increase speed 2.) a force in which one of the objects involved must be a liquid or a gas 3.

What do a broken rode and a volcano eruption have in common

What is the input of energy for a device that provides 50 units of useful energy and has an efficiency of 0.55?

All of the following shows density and buoyancy except: A. ice cubes floating in a glass of iced tea B. the amount of hot soup contained in a bowl C. a hot air balloon moving through the air D. a boulder resting at the bottom of the ocean

A 61 kg skier on level snow coasts 184 m to a stop from a speed of 12 m/s. (a) Use the Work-Energy Theorem to find the coefficient of kinetic friction between the skis and snow.