Physics, 18.03.2021 02:00 NetherisIsTheQueen

Which of the following is true about Electromagnets? When the current is shut off, the magnetic field disappears.
they do not easily lose their magnetism.
they are naturally-occurring magnets
All of the above
None of the above

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 15:00, mauricestepenson791

The equation that describes a transverse wave on a string is y = (0.0120 m)sin[(927 rad/s)t - (3.00 rad/m)x] where y is the displacement of a string particle and x is the position of the particle on the string. the wave is traveling in the +x direction. what is the speed v of the wave?

Answers: 1

continue

Physics, 22.06.2019 05:00, anime333

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?

Answers: 1

continue

Physics, 22.06.2019 11:30, emily965692

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

Answers: 2

continue

Physics, 22.06.2019 12:20, ginachuquiano450

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)

Answers: 1

continue

You know the right answer?

Which of the following is true about Electromagnets? When the current is shut off, the magnetic fie...