Physics, 19.12.2020 19:00 stopithelpmeplease

Who is yr favorite anime?

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Physics, 21.06.2019 18:30, caleelwittmann31

Which property of fossils allow scientists to determine the relative rock ages..

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Physics, 22.06.2019 07:00, math1325

How do you tell if someone actually cares about you? and just say they do?

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Physics, 22.06.2019 16:50, lizzepacheco

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°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.

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Physics, 23.06.2019 02:30, elishane864

Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.