Which of the following is an example of a contact force?

Gravity

Magnetic force

Electrical force

Air resistance

Which light interaction explains why you can see things that do not produce their own light? a. Absorption b. Reflection c. Refraction d. Scattering

Does the vertical or horizontal position affect an objects potential energy?

If the coolant in a refrigerator was not compressed back into a liquid after it flowed through the refrigerator what would happen

A partly full paint can has 0.67 U. S. gallons of paint left in it. (a) What is the volume of the paint in cubic meters? (b) If all the remaining paint is used to coat a wall evenly (wall area=13m^2), how thick is the layer of wet paint?

A special triangular frame is being made for a piece of artwork. The the base of the triangular frame must be 90 cm. If the area of the triangular frame is 765 square cm, what is the height? a) Let h = the height of the triangle.

A charged particle moves at 2.5 * 104 m/s at an angle of 25° to a magnetic field that has a field strength of 8.1 * 10-2 T. If the magnetic force is 7.5 * 10-2 N, what is the magnitude of the charge?

Earthquakes along the subduction zones near Sumatra and Chile are some of the strongest in the world.

What number is between 2000 and 2500

If a car changes its velocity from 32 km/hr to 54 km/hr in 8.0 seconds, what is its acceleration?

Explain why meteorologists compare new weather maps and weather maps that are 24 hours old