Physics, 28.11.2019 01:31 Naysa150724
In a hydroelectric dam, water falls 30.0m and then spins a turbine to generate electricity.
a) what is ? u of 1.0 kg of water?
express your answer with the appropriate units.
part b
suppose the dam is 80% efficient at converting the water's potential energy to electrical energy. how many kilograms of water must pass through the turbines each second to generate 54.0mw of electricity? this is a typical value for a small hydroelectric dam.
express your answer using three decimal places.
Answers: 3
Another question on Physics
Physics, 22.06.2019 00:50
While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.
Answers: 3
Physics, 22.06.2019 02:00
The crank oa rotates in the vertical plane with a constant clockwise angular velocity ω0 of 5.6 rad/s. for the position where oa is horizontal, calculate the force under the light roller b of the 10.6-kg slender bar ab.
Answers: 2
Physics, 22.06.2019 03:00
The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.
Answers: 2
Physics, 22.06.2019 09:30
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 3
You know the right answer?
In a hydroelectric dam, water falls 30.0m and then spins a turbine to generate electricity.
Questions
Social Studies, 26.02.2021 01:00
Mathematics, 26.02.2021 01:00
Mathematics, 26.02.2021 01:00
Mathematics, 26.02.2021 01:00
Mathematics, 26.02.2021 01:00
English, 26.02.2021 01:00
History, 26.02.2021 01:00
Mathematics, 26.02.2021 01:00
History, 26.02.2021 01:00
English, 26.02.2021 01:00
Physics, 26.02.2021 01:00
Mathematics, 26.02.2021 01:00
