A cargo elevator on Earth (where g = 10 m/s2) lifts 3000 kg upwards by 20 m. 720 kJ of electrical energy is used up in the process. What is the efficiency of this process?
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A cargo elevator on Earth (where g = 10 m/s2) lifts 3000 kg upwards by 20 m. 720 kJ of electrical energy is used up in the process. What is ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
if your car starts from rest and has an acceleration of 3.2 m/s2 how fast are you going after you have driven 20m
Answers (1)
A sample of gas in a balloon has an initial temperature of 13 ∘C and a volume of 1.04*103 L. If the temperature changes to 56 ∘C, and there is no change of pressure or amount of gas, what is the new volume, V2V_2, of the gas?
Answers (2)
Which reactance will increase when the angular frequency in the circuit increases?
Answers (1)
What happens when a hydrogen atom acts like a nonmetal in a chemical reaction?
Answers (1)
Explain the Big Bang Theory using the following terms: pressure, temperature, density, thermal energy and background radiation.
Answers (1)
New Questions in Physics
Far from any other masses, two masses, m1 and m2, are interacting gravitationally. The value for the mass of m1 suddenly doubles. What happens to the value of the gravitational force that mass m2 exerts on mass m1?
Answers (1)
Which of the outer planets are most like Earth? How?
Answers (1)
The pressure inside a champagne bottle can be quite high and can launch a cork explosively. Suppose you open a bottle at sea level. The absolute pressure inside a champagne bottle is 6 times atmospheric pressure; the cork has a mass of 7.
Answers (1)
Using a cathode ray tube, Thomson confirmed that atoms must have an overall positive charge. atoms are made of particles that have a negative charge. electrons in atoms must have varying amounts of energy. electrons are only found in the nucleus.
Answers (1)
A ball is rolled along the inside of a partial hoop lying flat on a table. which path will the ball follow when it gets to the end of the hoop?
Answers (1)