Physics, 23.02.2021 08:40 Brandonjr12
A 80 kg man and a 2.5 kg hairless dog go swimming. When they emerge, a 0.33 kg film of water adheres to the man's skin. Assume that the bodies are isometric for the following questions.
A) How much water adheres to the dog's skin? answer in kg.
B) What percentage of the mass of each is the water film?
Answers: 2
Physics, 22.06.2019 19:10
Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to
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Physics, 22.06.2019 21:40
Ahair dryer is basically a duct in which a few layers of electric resistors are placed. a small fan pulls the air in and forces it through the resistors where it is heated. air enters a 1200 w hair dryer at 100 kpa and 22°c and leaves at 47°c. the cross-sectional area of the hair dryer at the exit is 60 cm2. neglecting the power consumed by the fan and the heat losses through the walls of the hair dryer, determine (a) the volume flow rate of air at the inlet and (b) the velocity of the air at the exit.
Answers: 1
A 80 kg man and a 2.5 kg hairless dog go swimming. When they emerge, a 0.33 kg film of water adheres...
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