What are the correct units for energy and work

An athlete spins in a circle before releasing adiscus with a tangential speed of 9.7 m/s. What is the angular speed of the spinningathlete? Assume the discus is 0.60 m from the

A wire of length L is wound around an iron cylinder mounted on a base. The two ends of the wire are connected to a battery via a switch that is initially open. A metal ring with a diameter larger than that of the cylinder sits on top of the coil.

What is current? A. The excess build-up of electric charge. B. The movement of electric charge C. Measured in volts D. Resistance to the flow of electrons

A car of mass 2300 kg collides with a truck of mass 4000 kg, and just after the collision the car and truck slide along, stuck together, with no rotation.

Why there is a difference between 'actual' mechanical advantage and 'ideal' mechanical advantage.

Astronauts appear weightless while working in the International Space Station because A) they are in a state of free fall. B) there isn't any gravity in outer space. C) they have very little mass when in outer space.

The distance between two consecutive crests is 2.5 meters. Which characteristics of the wave does this distance represent?

Who first landed on the moon?

What factors affect the speed of a wave? Check all that apply. the amplitude of the wave the energy of the wave the temperature of the medium the type of wave the type of medium

A sound level of 96 dB is how many times as intense as one of 90 dB?