If a light wave is reflected with a 27° angle of reflection, what was the angle of incidence of which it was transmitted?

Den pushes a desk 400 cm across the floor. He exerts a force of 10 N for 8 s to move the desk. What is his power output? (Power: P = W/t)

We've seen that stout tendons in the legs of hopping kangaroos store energy. When a kangaroo lands, much of the kinetic energy of motion is converted to elastic energy as the tendons stretch, returning to kinetic energy when the kangaroo again

Which form of radioactive decay would you be most likely to detect if it was happening in the room next to the one you are currently in?

3. A 250 g car is released from rest at the top of a frictionless incline, 5 m above the ground.

What force could be applied to a box to make the net force in the horizontal direction of zero

A thermometer is placed in water in order to measure the water's temperature. What would cause the liquid in the thermometer to drop? A. The molecules in the water spread apart. B. The molecules in the thermometer's liquid spread apart. C.

The amount of energy carried by a wave is proportional to the square of the wave's A. frequency B. amplitude C. wavelength D. period ... ?

The pressure at the bottom of a jug filled with water does not depend on

at what other angle will a thrown ball go the same distance as one thrown at an angle of 75 degrees?

A record player turntable initially rotating at 3313 rev/min is braked to a stop at a constant rotational acceleration. The turntable has a rotational inertia of 0.031kg? m2.