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Which of these physical processes is responsible for the propagation of an electromagnetic wave? 1. The generation of an electric field due to a change in magnetic flux. 2. The generation of a magnetic field due to a change in electric flux. 3. The superposition (vector addition) of the electric field and the magnetic field.
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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.
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Physics, 22.06.2019 18:00
Gabby calls her cousin who lives in a different state and tells her to turn her radio to channel 98.7 so they can listen to their favorite song that is playing. her cousin turns her radio to 98.7, but does not hear the same song gabby hears. which most likely explains why?
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Physics, 22.06.2019 20:30
Atemperature inversion can cause a warm air mass to move over a colder air mass. this traps the colder air mass and prevents surface air from rising. this may result in which of these? a) smog b) acid rain c) freezing rain d) a thunderstorm
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Physics, 23.06.2019 00:30
What practical value did astronomy offer to ancient civilizations?
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Which of these physical processes is responsible for the propagation of an electromagnetic wave? 1....
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