If Mike does 25.5 J of work lifting a book 1.5 m onto a shelf what is the mass of the book in kilograms

A 225 kg red bumper car is moving at 3.0 m/s. It hits a stationary 180kg blue bumper car. The red and blue bumped cars combine and hit a stationary green bumper car of mass 150kg. The red, blue and green bumper cars all combine.

A Ferris wheel takes 5 minutes to complete 1 revolution, what is the angular velocity of the Ferris wheel

Electrons are modeled using a "cloud"around the nucleus because they A) can not be precisely located B) travel at the speed of light C) exists in many places at once D) move in an orbit about the nucleus

Which part of a transverse wave is similar to a compression in a longitudinal wave?

The human body uses water in many of its natural processes. water is made of two hydrogen atoms bonded to an oxygen atom. what are the three basic parts that make up all atoms?

Both the electrical force and the gravitational force between two objects share which relationship? They are directly proportional to mass. They are inversely proportional to the square of the distance. They are inversely proportional to charge.

During a baseball game, a player hits a a ball with a speed of 43m/s at an angle of 25∘ above the horizontal. When the player hit the ball, it was 1m above the ground, and after the hit, the ball flies straight toward the center field fence.

How does the electric potential energy change as the electron moves from i to f?

A sound wave travels twice as far in neon (Ne) as it does it krypton (Kr) in the same time interval. Both neon and krypton can be treated as monatomic ideal gases. The atomic mass of neon is 20.2 u, and that of krypton is 83.8 u.

A 0.25 kg hockey puck is sliding along the ice with an initial velocity of 5 m/s when a player strikes it with his stick, causing it to reverse its direction and giving it a velocity of 30 m/s.