Physics, 26.10.2020 18:00 schoolboyq3017
Cilindrii din figura de mai jos sunt fixati conform desenului. Pistoanele avand ariile S1=100cm^2 respectiv 50cm^2, sunt uniti cu o tija rigida. In interiorul vaselor se gaseste aer la temperatura 27C si presiunea normala. Aerul din cilindrul mai mic este incalzit cu 50C. Cu cat trebuie modificata temperatura aerului din cilindrul celalalt pentru ca pistoanele sa ramana in aceeasi pozitie?
Answers: 3
Physics, 22.06.2019 04:00
If steel is more dense that lake water, why can a boat float
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Physics, 22.06.2019 08:30
If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.
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Physics, 22.06.2019 13:40
An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.
Answers: 2
Cilindrii din figura de mai jos sunt fixati conform desenului. Pistoanele avand ariile S1=100cm^2 re...
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