Physics, 20.04.2021 00:44 ChronicGamingRB

A diagram of six pulleys represents a block and tackle system on which an effort of 50N is able to lift a load of weight W. If the efficiency of the machine is 40%. Find the value of weight

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 10:30, markfaerman5408

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.

Answers: 3

continue

Physics, 22.06.2019 18:10, coryowens44

Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)

Answers: 1

continue

Physics, 22.06.2019 21:40, lottie2306

Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.

Answers: 3

continue

Physics, 22.06.2019 23:10, KOAL

An ascending elevator, hanging from a cable, is coming to a stop. part a part complete identify all forces acting on the elevator from the list below. select all that apply. select all that apply. kinetic friction normal force tension weight static friction submitprevious answers correct part b draw a free-body diagram of the object. draw the vectors starting at the black dot. the location and orientation of the vectors will be graded. the exact length of your vectors will not be graded but the relative length of one to the other will be graded.

Answers: 3

continue

You know the right answer?

A diagram of six pulleys represents a block and tackle system on which an effort of 50N is able to l...