An ice hockey puck slides along the ice at 12 m/s.?

A hockey stick delivers an impulse of 4.0 kg x m/s causing the puck to move off in the opposite direction with the same speed.

What is the mass of the puck in kg?

True or false? nuclear fusion happens when uranium combines

Given that the period of the Moon's orbit about the Earth is 27.32 days and the nearly constant distance between the center of the Earth and the center of the Moon is 3.84 108 m, use T2 = 4 π2 GME a3 to calculate the mass of the Earth.

A projectile is fired at an upward angle of 29.7° from the top of a 108-m-high cliff with a speed of 130-m/s. What will be its speed (in m/s) when it strikes the ground below?

A cart rolling down an incline for 5.0 seconds has an acceleration of 4.0 m/s. If the cart has an initial speed of of 2.0 m/s, what's its final speed.

Ou push a box with a force of 80 n. if the net force on the box is 50 n, what is the force on the box due to sliding friction?

An open-topped freight car with mass 24,000 kg is coasting without friction along a level track. It is raining very hard, and the rain is falling vertically downward. Originally, the car is empty and moving with a speed of 4.00 m/s.

Photons travel outward from a light bulb in

The critical angle for a beam of light passing from water into air is 48.8°. this means that all light rays with an angle of incidence in the water that is greater than 48.8° will be

A basketball is filled with air and has a small hole. Explain why the basketball would leak.

Aligned magnetic domains are only present in which of the following? A) permanent magnets B) temporary magnets C) all magnetic material D) depends on the situation