subject
Physics, 03.12.2019 03:31 semily74

8. using a ramp 6 meters long, workers apply an effort force of 1250 n to move a
2000 n (f.) crate onto a platform 2 meters high. what is the efficiency of the
ramp? (hint: calculate win & wout, then efficiency

ansver
Answers: 1

Other questions on the subject: Physics

image
Physics, 22.06.2019 06:30, jordanbyrd33
Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)
Answers: 1
image
Physics, 22.06.2019 16:00, chamyaparker
What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.
Answers: 3
image
Physics, 22.06.2019 18:30, ochoanene822
Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction
Answers: 2
image
Physics, 22.06.2019 19:10, summer132
Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to
Answers: 3
You know the right answer?
8. using a ramp 6 meters long, workers apply an effort force of 1250 n to move a
2000 n (f.) cr...

Questions in other subjects:

Konu
Spanish, 13.10.2019 22:20
Konu
Social Studies, 13.10.2019 22:20
Konu
History, 13.10.2019 22:20