Question 20
The velocity ratio of a machine is 5 and its efficiency is 75%. What effort would be needed to lift a load of 150N with the machine?
Objective
Question details
- Exam body
- UNIBEN
- Subject
- General Paper
- Year
- 2020/2021
- Question no.
- #20
- Type
- Objective
More from this paper
- Q16A solid weights 10.0N in air, 6.0N when fully immersed in water and 7.0 N when…
- Q17When the temperature of a liquid is increased, its surface tension.
- Q18An astronomical telescope is said to be in adjustment when the
- Q22Radioactive changes differ from ordinary chemical changes in that radioactive…
- Q23The addition of water to calcium oxide leads to
- Q24A colourless solution was tested with Tollen's reagent, the colourless solution…