A hockey puck, mass of 0.115 kg, moving at 35 m/s strikes a ray thrown on the ice by a fan. The ray has a mass of 0.265 kg. The puck and the ray slide off together.

Find their velocity.

What is the minimum kinetic energy in electron volts that an electron must have to be able to ionize a hydrogen atom (that is, remove the electron from being bound to the proton) ?

A soap bubble has a diameter of 4mm. Cakculate the pressure inside it if the atmospheric pressure outside is 10^5Nm^2. The surface tension of soap = 2.8 * 10^-2N/m

What is the main thing that holds soil in place?

Explain how the change in temperature indicates a change in thermal energy (heat) ?

How is a frame of reference used to measure motion

A proton moving in a region of a space does not experience any acceleration in the direction of motion.

Which best describes the relationship between internal energy and thermal energy? Thermal energy is a measure of the internal energy of a substance. Internal energy is a measure of the thermal energy of a substance.

5. Consider two glasses, one filled with water and the other half-full, with the water in the two glasses being at the same temperature.

1. Why is the theory that all things are made up of atoms a theory and not a fact?

A 600 N astronaut travels to an asteroid where the gravitational force is one-hundredth that of Earth. What is the astronaut's weight on the asteroid?