Physics, 14.01.2021 22:00 cchave9563
What is the efficiency of a heat engine, which performs a mechanical work of 138MJ, consuming 6 kg of gasoline? Help much appreciated :)
Answers: 2
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In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?
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Physics, 22.06.2019 16:00
The electric field direction is defined by the direction of the force felt by (select one of the following answers): 1. a negative charge. 2. a positive charge. 3. both positive and negative charges.
Answers: 2
Physics, 22.06.2019 22:00
Aviolently rotating column of air is formed around a region of extremely low air pressure above land. which of these weather conditions is most likely to follow? blizzard cyclone tornado hurricane
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Physics, 22.06.2019 22:30
Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?
Answers: 3
What is the efficiency of a heat engine, which performs a mechanical work of 138MJ, consuming 6 kg o...
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