![subject](/tpl/images/cats/fizika.png)
Physics, 24.01.2020 00:31 savid88061
The total power supplied to a lift motor is 5000w. in a test the motor transfers 12000 kj of energy in 20s to the gravitational potential energy store of the lift. calculate how much energy is supplied by the motor by the current through it in 20s
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 13:30
6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 17:10
It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .
Answers: 1
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 19:30
Which describes increasing the efficiency of energy resource
Answers: 2
You know the right answer?
The total power supplied to a lift motor is 5000w. in a test the motor transfers 12000 kj of energy...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 18.05.2021 20:50
![question](/tpl/images/cats/en.png)
English, 18.05.2021 20:50
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.05.2021 20:50
![question](/tpl/images/cats/mat.png)
Mathematics, 18.05.2021 20:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 18.05.2021 20:50
![question](/tpl/images/cats/mat.png)
Mathematics, 18.05.2021 20:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.05.2021 20:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
Physics, 18.05.2021 20:50
![question](/tpl/images/cats/mat.png)
Mathematics, 18.05.2021 20:50