Why does the shape of the moon change

A grindstone spinning at the rate of 8.3 rev's has what approximate angular speed? a. 3.2 rad/s b. 26 rad/s e. 52 rad/s d. 8t rad/s

Explain how the existence of isotopes is related to atomic masses not being whole numbers

A roller coaster car may be approximated by a block of mass m. Thecar, which starts from rest, is released at a height h above the ground and slides along a frictionless track. The car encounters a loop of radius R.

The resistance of the body varies from approximately 500 kΩ (when it is very dry) to about 1.00kΩ (when it is wet). The maximum safe current is about 5.00 mA. At 10.0mA or above, muscle contractions can occur that may be fatal.

Calculate the density of the baseball. Use the formula D = m/V where D is the density, m is the mass, and V is the volume. Determine whether the density of baseball is within the legitimate range for an official baseball.

The force is proportional to what measurement

A moving ball rolls into a stationary ball. the total momentum of both balls after the collision will be

A train's mass is 18181.81 kg. What is its weight?

A body of mass 20kg is set in motion by two forces 3N and 4N acting at right angles to each other, determine the magnitude of the acceleration

Gerry and Lena work in a modern physics laboratory and study nanotechnology, which is a new type of technology that allows control over individual particles as small as molecules or atoms.