n object moves with a constant speed of 30 m/s on a circular track of radius 150 m. What is the acceleration of the object

A rock is thrown downward with velocity 10 ft/sec from a bridge 100 ft above the water. how fast is the rock going when it hits the water?

A coffee-maker contains a heating element that has a resistance of 28 Ï. this heating element is energized by a 120-v outlet. what is the current in the heating element?

The policeman also watched a truck that was sitting at the red light. When the light turned green, the truck slowly started moving, getting faster and faster until it was going a constant velocity.

Explain how fossil fuels are turned into useful forms of energy?

Lighting a match results in light and heat. Since energy was not created by the match, what transformation took place?

If the action force is throwing a ball, what is the reaction force?

Wave A has an amplitude of 2 cm, and wave B has an amplitude of 2 cm. Both waves are in phase. Determine the amplitude of resulting wave C

Calculate the percent weight reduction of the plane as it moves from the sea level to 11,719.342 m.

You and a friend are jumping on a trampoline. Why does Earth, which is rapidly orbiting around the sun, not move under your feet when you jump? A.

How much heat is absorbed by a 29g iron skillet when its temperature rises from 9oC to 105oC?