Can someone answer this please? Study the scenario. A fan spins in a small room. The system consists of the fan, the Earth, and the air. Which choice best describes the role of thermal energy in energy transformations? A)The fan blades also warm up as they spin, indicating that some of the electrical energy is converted to thermal energy. Thermal energy reduces the amount of electrical energy being converted into mechanical energy. B)The fan blades also warm up as they spin, indicating that some of the heat energy from the surroundings is going to the fan. Thermal energy increases the amount of electrical energy being converted into mechanical energy. C) The fan blades cool down as they spin, indicating that some of the electrical energy is converted into heat energy and going into the surroundings. Thermal energy reduces the amount of electrical energy being converted into kinetic energy. D)The fan blades also warm up as they spin, indicating that some of the heat energy from the surroundings is going to the fan. The total amount of electrical energy is all converted into mechanical energy.
Answers: 3
Physics, 22.06.2019 04:30
Erosion of the beach is normally a slow process. however, in certain situations, large chunks of shore may wash out to sea. what could cause this to happen?
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Physics, 22.06.2019 06:30
How much force was applied to an object if was moved 2 meters and the work done on the object was 8 joules? a. 0.25 n b. 4 n c. 6 n d. 16 n
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Physics, 22.06.2019 11:10
An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?
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Physics, 22.06.2019 15:30
The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?
Answers: 2
Can someone answer this please? Study the scenario. A fan spins in a small room. The system consists...
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