The average kinetic energy of the particles in a sample of matter is expressed as

When two forces or more forces act on an object, the forces are

What is the awnser to Blank occurs when a substance changes from a liquid to a gas

A boy exerts a force of 225 n on a lever to raise a 1250 n rock a distance of 0.13 m. if the lever is frictionless, how far did the boy have to move his end of the lever?

What kind of tide happens during a full and new moon? explain

An electron is moving at 7.4 x 10^5 m/s perpendicular to a magnetic field. It experiences a force of - 2.0 x 10^-13 N. What is the magnetic field strength?

What is s the best description of the constructive interference of light? A. two waves have the same direction of displacement. B. two waves have displacement in opposite directions. C. a longitudinal wave meets a transverse light wave D.

1875 kg car is traveling at 22 m/s. It's momentum is?

Hot air balloon rises because a) molecules become lighter when heated b) molecules move faster and farther apart when heated c) molecules are less attracted by gravity when heated d) molecules become charged and repel each other when heated

If the diameter of the space station is 730 m, how many revolutions per minute are needed for the "artificial gravity" acceleration to be 9.80m/s2?

A person who has dissociative identity disorder: O A. cannot remember who he or she is. O B. has panic attacks when confronted. C. has two or more distinct personalities OD hears voices