Physics, 19.03.2021 22:30 brinks7994

A crane lifts a steel girder in 45s. It required the crane to do 8,750,000J of work. How much power did the crane use?

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 11:30, Gigglygoose4181

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.

Answers: 1

continue

Physics, 22.06.2019 14:30, val926

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell

Answers: 2

continue

Physics, 22.06.2019 17:10, kaiyakunkle

What causes the development of most clouds and precipitation in the atmosphere?

Answers: 1

continue

Physics, 22.06.2019 22:30, gaby4567

Atennis player used a tennis racket to hit a tennis ball with a mass of 0.25 kg with a force of 5.25 newtons. how does the force the tennis racket exerted on the tennis ball compare with the force the tennis ball exerted on the tennis racket? a. the force of the tennis racket on the tennis ball is equal in magnitude and opposite in direction to the force the tennis ball exerted on the tennis racket. b. the force of the tennis racket on the tennis ball is equal in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. c. the force of the tennis racket on the tennis ball is less in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. d. the force of the tennis racket on the tennis ball is greater in magnitude and opposite in direction as the force the tennis ball exerted on the tennis racket.

Answers: 1

continue

You know the right answer?

A crane lifts a steel girder in 45s. It required the crane to do 8,750,000J of work. How much power...