Physics, 04.03.2021 14:00 jaimefashion12
If a man with a mass of 80 kg stops at the bottom of a building and
wants to climb to the top. If the height of the building is 9 meters above the
ground, calculate the potential energy of the man while he isstanding below the
building with respect to the roof of the building?
Answers: 1
Physics, 21.06.2019 23:00
Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?
Answers: 1
Physics, 22.06.2019 02:40
What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.
Answers: 2
Physics, 23.06.2019 07:30
Why would an orange roll of your cafeteria tray if you stopped suddenly
Answers: 1
Physics, 23.06.2019 10:30
How many minutes does light need to travel from the sun to jupiter?
Answers: 1
If a man with a mass of 80 kg stops at the bottom of a building and
wants to climb to the top. If t...
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