Sound waves from the engine of the plane are transmitted to the stationary observer on the ground. If the plane accelerates constantly from point A to point and the engine produces a constant sound during this trip, at which point will the observer hear the highest frequency sound wave?
A)
B)
C)
D)

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conduction, convection, radiation

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.