A transformer has a 2:1 turns ratio. 120 V is applied to the primary. What is the secondary voltage?

Explain which of the following has more inertia and why: a 200 lb wrestler sitting on a mat or a baseball flying through the air at 55 mi/hr.

Two workers pull horizontally on a heavy box but one pulls twice as hard as the other. The larger pull is directed at 25.0 west of north and the resultant of these pulls is 430.0N directly northward.

Suppose the sun shrank in size but its mass remained the same. what would happen to the orbit of earth?

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? A 6 N B 6 kg C 600 kg D 60,000 N

A sound wave is produced when a medium begins to blank.

An 8.5 l tire is filled with 0.55 moles of gas at a temperature of 305 k. what is the pressure of the gas in the tire?

Total internal reflection occurs only if

A radioactive nucleus at rest decays into a second nucleus, an electron, and a neutrino. the electron and neutrino are emitted at right angles and have momenta of 9.80 ✕ 10-23 kg·m/s, and 5.70 ✕ 10-23 kg·m/s, respectively.

A child is sliding down a slide at the playground. Is the mechanical energy conserved? Why or why not? The mechanical energy is conserved. There is as much KE at the end as there was PE at the beginning. The mechanical energy isn't conserved.

Which term refers to the rate at which the velocity of a moving object changes? A. acceleration B. displacement C. resonance D. turbulance