*[ Physics ]*
Three pulleys are to be used to lift a 1000N load from the ground to the top floor of a building 40.0m high. Draw an arrangement of the pulleys showing the windings . Given that the efficiency of the machine is 72.0% , calculate the :
1. Velocity ratio
2. Effort required
3. The total energy not used for any useful work. Suggest reasons why there must be loses in energy for this kind of machine.
Answers: 1
Another question on Physics
Physics, 22.06.2019 03:50
The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error
Answers: 1
Physics, 22.06.2019 04:20
Calculate the capacitance of a system that stores 2.0 x 10^-10c of charge at 100.0 v. use c=q/v. a. 2.0 x 10^-12 f b. 2.0 x 10^-8 f c. 5.0 x 10^11 f d. 5.0 x 10^7 f
Answers: 1
Physics, 22.06.2019 18:10
Aa a of 22 m/s at an of 36.9 .be . a. b. c. (3)x y of? (3)go? (4) () it to to ?
Answers: 1
You know the right answer?
*[ Physics ]*
Three pulleys are to be used to lift a 1000N load from the ground to the top floor of...
Questions
History, 21.11.2019 08:31
Computers and Technology, 21.11.2019 08:31
English, 21.11.2019 08:31
Mathematics, 21.11.2019 08:31
History, 21.11.2019 08:31
English, 21.11.2019 08:31
Mathematics, 21.11.2019 08:31
History, 21.11.2019 08:31
Mathematics, 21.11.2019 08:31
Mathematics, 21.11.2019 08:31
History, 21.11.2019 08:31
