Physics, 31.08.2019 09:50 kifeak2002
In order to qualify for the finals in a racing event, a race car must achieve an average speed of 223 km/h on a track with a total length of 1350 m. if a particular car covers the first half of the track at an average speed of 215 km/h, what minimum average speed must it have in the second half of the event in order to qualify? answer in units of km/h.
Answers: 1
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Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60Ā°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.
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In order to qualify for the finals in a racing event, a race car must achieve an average speed of 22...
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