Two identical cars collide head on. Each car is traveling at 100 km/h. The impact force on each car is the same as hitting a solid wall at:

(a) 100 km/h

(b) 200 km/h

(c) 150 km/h

(d) 50 km/h

A coil of wire, a battery, a few paper clips, and a thermometer are on a table of supplies What other material or materials would be needed for a student to construct a basic electric motor?

How does the heat energy from the sun reach us through the vacuum of space? a. conduction b. radiation c. convection d. none of the above choices are valid

a student is pulling up a 70 kg bucket at 4m/s^2. how much force does the student need to exert to make this happen?

One reason it's often easy to miss and action reaction pair is because of?

Can a falling object reach terminal velocity in outer space? Explain.

What is a transverse wave

Object moving at a constant velocity will always have a

Who would most likely agree that a child learns certain behaviors from observing other people?

A bullet is fired horizontally from a height of 78.4 m and hits the ground 2400 m away. With what velocity does the bullet leave the gun?

Select the correct answer. Two charged objects, A and B, exert an electric force on each other. What happens if the distance between them is increased? O A. The charge on B decreases. OB. The charge on B increases. OC.