Which is not a device for reproducing sound? phonograph MP3 player gramophone microphone

In which situations is gravitational potential energy present? Check all that apply.

What are all the elements of a perfect graph?

At high velocities, the drag force is seen to depend on the square of the velocity of the object. suppose you are told that the terminal velocity for a fast moving mass of 0.038 kg is 16 m/s.

An ideal gas is in a sealed rigid container. the average kinetic energy of the gas molecules depends most on

How does earth's magnetic field behave through long periods of geologic time?

What is the current for a 1200W microwave connected to 110V outlet.

If a negatively charged particle enters a region of uniform magnetic field which is perpendicular to the particle's velocity, will the kinetic energy of the particle increase, decrease, or stay the same?

The horizon moon appears to shrink in size if it is viewed through a narrow tube that eliminates the perception of distance cues. This best illustrates the importance of: a) convergence b) closer, farther away c) context effects d) none of thses

A bow is pulled back with 89.0N of force a distance of. 600m and shoots a 300kg arrow straight up. What is the work done on the arrow? 0.00J 53.4J 26.7J 16.0J

A stationary rock is pushed off a very high cliff. Which graph correctly represents the acceleration due to gravity as the rock undergoes free fall to the ground?