Physics, 30.10.2019 02:31, eweqwoewoji
Apower washer is being used to clean the siding of a house. water enters at 20 c, 1 atm, with a volumetric flow rate of 0.1 liter/s through a 2.5-cm-diameter hose. a jet of water exits at 23 c, 1 atm, with a velocity of 50 m/s at an elevation of 5 m. at steady state, the magnitude of the heat transfer rate from the power unit to the surroundings is 10% of the power input. determine the power input to the motor, kw.
Answers: 3
Physics, 21.06.2019 16:10, andrewisboss59
Amachine, modeled as a simple spring-mass system, oscillates in simple harmonic motion. its acceleration is measured to have an amplitude of 5,000 mm/s with a fre- quency of 10 hz. compute the maximum displacement the machine undergoes during this oscillation.
Answers: 1
Physics, 22.06.2019 06:10, crystalryan3797
Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.
Answers: 3
Physics, 22.06.2019 16:40, byers024
Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward
Answers: 1
Physics, 22.06.2019 18:00, levilugar
Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.
Answers: 2
Apower washer is being used to clean the siding of a house. water enters at 20 c, 1 atm, with a volu...
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