A mass m = 4.7 kg hangs on the end of a massless rope L = 2.06 m long. The pendulum is held horizontal and released from rest. 1) How fast is the mass moving at the bottom of its path?

The average distance to the stars that make up the constellations in the night sky around the sun is about

The table lists several radioisotopes that have technological uses. Which radioisotope would be used by both archaeologists and botanists (scientists who study plants) ? uranium-238 carbon-14 iodine-131 technetium-99

What is the acceleration of a 0.30-kg volleyball when a player uses a force of 42 N to spike the ball?

The two types of decomposers

Outline the main events in the Moon's geological history.

The portion of a light ray that falls on a surface is a/an

Give the definition for diffusion. (A) gas molecules mix unequally average distance between collisions (B) gas molecules escape from a container into a vacuum through a small hole (C) gas molecules mix equally (D) gas molecules spread out in a

As resistance goes up, what happens to the current?

1. A 0.828-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. a) Find the momentum of the electron. b) Find the kinetic energy of the electron.

When are you most aware of your motion in a moving vehicle: when it is moving steadily in a straight line or when it is accelerating?