Which of the following describes water? a. is liquid over a narrow temperature range; requires a small amount of energy per gram to raise its temperature b. is liquid over a wide temperature range; requires a large amount of energy per gram to raise its temperature c. has weak cohesive forces between molecules; is liquid over a wide temperature range d. has strong cohesive forces between molecules; is liquid over a narrow temperature range
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Physics, 22.06.2019 06:30
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)
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Physics, 22.06.2019 08:30
The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.
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Physics, 23.06.2019 09:30
To solve a problem using the equation for kepler ‘s third law , enrico must convert the average distance of mars from the sun from meters into astronomical units . how should he make the conversion ?
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Which of the following describes water? a. is liquid over a narrow temperature range; requires a s...
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