Which will be attracted to (or repelled by) a magnet

A freight car moves along a frictionless level railroad track at constant speed. The freight car is open on the top. A large load of sand is suddenly dumped into the freight car.

What is convection? Does it only affect plate tectonics?

The surplus energy theory of play suggests that A. children are the link between animals and human beings B. children have too much energy and play will rid them of that energy. C. play is necessary to reenergize human cognition. D.

If all the atoms in a molecule of a substance are alike then the substances is

Work = force x distance Power = work / time 745 watts = 1 hp A tow truck is hired to pull out a 2000 Kg Car from a 10 meter deep ditch straight up and place it on the level ground.

What do you use to measure potential difference

A force F = 94.9 N acts at an angle α = 35◦ with respect to the horizontal on a block of mass m = 29.3 kg, which is at rest on a horizontal plane. The acceleration of gravity is 9.81 m/s 2. If the static frictional coefficient is µs = 0.

Which statements about eclipses are true? Check all that apply. Earth's shadow creates a solar eclipse. A total lunar eclipse has a reddish color. The moon moves between Earth and the Sun during a solar eclipse.

Who would use more energy in a day - someone who plays a lot of sport or someone who plays a lot of computer games

If you know the wavelength of any form of electromagnetic radiation, you can determine its frequency because?