The change in frequency of a wave as its source moves in relation to an observer.
A)
Ultrasou...
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Physics, 22.06.2019 07:40, bellapimienta8
Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents
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If the force applied to an object remains constant, is more power needed for the object to move faster ? explain
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If a simple machine reduces the strength of a force, what must be increased?
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