The specific heat (c) of copper is 0.39 J/g °C. What is the temperature

change (At) when 100 Joules of heat (Q) is added to 20 grams?

A spring of negligible mass and force constant k = 400 N/m is hung vertically, and a 0.240 kg pan is suspended from its lower end. A butcher drops a 2.4 kg steak onto the pan from a height of 0.40 m.

For the rotational part of the experiment, a student measures a force of 1.8 n when the radius is 12 cm and the angular velocity 10 rad/s. a. what is the total mass of the object undergoing uniform circular motion? b.

A 92.0-kg skydiver falls straight downward with an open parachute through a vertical height of 325 m. The skydiver's velocity remains constant.

Which would hit the ground first if dropped from the same height in a vacuum-a feather or a metal bolt?

Time is relative, what does that mean?

A moving object always has energy in its?

What is the volume of a box that is 12 cm long, 2 cm wide, and 3 cm high?

Suppose a child drives a bumper car head on into the side rail, which exerts a force of 4000 N on the car for 0.200 s. (a) What impulse is imparted by this force?

If a soundproof door is almost shut but still leaves a small opening, what wave phenomenon is responsible for someone being able to hear sound from the room while standing by the wall to the side of the opening?

What happens to the force of gravitational attraction if the distance between two objects increase?