A ball rolls down a ramp. A small amount of friction heats up the ball. What energy transformations are taking place?

What couses uneven heating?

The men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s. At this rate, how many seconds would it take to swim 0.8500.850 miles (1 mi = 1609 m) ?

How did the coastal mountains form

A charge of 6.4 * 10-7 C experiences an electric force of 1.8 * 10-1 N. What is the electric field strength? 1.1 * 10-7 N/C 3.6 * 10-6 N/C 8.2 * 100 N/C 2.8 * 105 N/C

A child is sliding down a slide at the playgound. is mechanicalenergy conserved

Recently, some information about a distant planet was learned. It has a radius of 6000000 meters, and the density of the atmosphere as a function of the height h (in meters) above the surface of the planet is given by δ (h) =

Which of the following is not a good approximation of the relationship between independent and dependent variables? A. independent: first, dependent: next B. independent: input, dependent: output C. independent: cause, dependent: effect D.

A force is applied to a 13.0 kg wagon to pull it down the sidewalk at a constant speed. The coefficient of kinetic friction is 0.65. Considering the resulting frictional force, what is the magnitude of the applied force?

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planers in orbit around the Sun.

What wave-like property of light causes it to bend when encountering an opening? A. Reflection B. all the above c. Refraction d. none of the above e. diffraction