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Physics, 21.06.2019 23:30
Ais not a compound machine. a. bolt b. shovel c. handcart (dolly) d. see-saw (teeter totter)
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Physics, 22.06.2019 16:50
Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35Ā°c by rejecting waste heat to cooling water that enters the condenser at 18Ā°c at a rate of 0.25 kg/s and leaves at 26Ā°c. the refrigerant enters the condenser at 1.2 mpa and 50Ā°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.
Answers: 2
Physics, 22.06.2019 18:30
Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton
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Physics, 22.06.2019 22:50
The chart shows danielaās run through her race. what is her velocity? 1.5 m/s 2 m/s 2.5 m/s 5 m/s
Answers: 1
Energy transformation dropping an apple core into the garbage....
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