When the wagon's brakes are off, the engine pulls the wagon forwards. A

frictional force also acts on the wagon. In what direction does the frictional

force act?

The electroscope is an apparatus used to detect electric charge. The electroscope consists of a plate, a support and a free to rotate needle all made of metal.

Most distances in the Galaxy are measured in light-years instead of meters. Why do you think this is the case?

Which of the following is a natural resource that is used to produce margarine? butter water hydrogenated oil plants

If momentum is conserved, what happened to velocity when mass changes? A. Velocity stays the same. B. Velocity always increases. C. Velocity always decreases. D. Velocity changes.

A train travels 120 km in 2 hours and 30 minutes. what is it average speed?

Heat is conducted when one atom or molecule collides with and A. transfers energy to another atom or molecule. B. transfers mass to another atom or molecule. C. fuses with another atom or molecule. D.

What are the two rolls of decomposers in an ecosystem

A devout halloweener not only dressed as an astronaut, but travelled to the moon for the full experience. The astronaut jumps on the moon with an initial upward velocity of 2.98m/s. If the acceleration of gravity on the moon is - 1.

most of earth water a. contains salt b. is freshwater c. is frozen in glaciers d. is found underground

Kilogram definition