![subject](/tpl/images/cats/fizika.png)
The rollercoaster car is raised a vertical distance of 35 m to point A by a motor in 45
seconds.
The mass of the rollercoaster is 600 kg.
The motor has a power rating of 8 000 W.
(a) Calculate the percentage efficiency of the motor.
Gravitational field strength = 9.8 N/kg.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 07:00
Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:00
Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 09:10
Many science fiction movies and tv shows have detected using a nuclear weapon to destroy astroids what problems does plait see with this plan
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 09:30
The vector a? is 3.50 cm long and is directed into this page. vector b? points from the lower-right corner of this page to the upper-left corner of this page and has the components bx=-19.5 cm , by=25 cm. in the right-handed coordinate system, where the +x-axis directed to the right, the +y-axis toward the top of the page, and +z-axis out of the page, find the x-component of the vector product a? ×b? , measured in cm2.
Answers: 1
You know the right answer?
The rollercoaster car is raised a vertical distance of 35 m to point A by a motor in 45
seconds.
Questions
![question](/tpl/images/cats/geografiya.png)
Geography, 04.01.2021 16:40
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.01.2021 16:40
![question](/tpl/images/cats/himiya.png)
Chemistry, 04.01.2021 16:40
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 04.01.2021 16:50
![question](/tpl/images/cats/mat.png)
Mathematics, 04.01.2021 16:50
![question](/tpl/images/cats/fizika.png)
Physics, 04.01.2021 16:50
![question](/tpl/images/cats/fizika.png)
Physics, 04.01.2021 16:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.01.2021 16:50
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/fizika.png)
Physics, 04.01.2021 16:50
![question](/tpl/images/cats/mat.png)
Mathematics, 04.01.2021 16:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/en.png)
English, 04.01.2021 16:50