Physics, 29.08.2019 02:30 Kassiekass
On a spring scale that measures force, a reading shows the force of an object to be about half way between 0 n and 1 n. which of the following would be the most accurate measurement for the force?
49.0 n
0.49 n
0.049 n
4.90 n
Answers: 1
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Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.
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On a spring scale that measures force, a reading shows the force of an object to be about half way b...
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