Question
The apparent frequency might be higher, lower, or equal to the emitted frequency when the two objects are ____. It depends on their relative speeds.
Answer
The apparent frequency might be higher, lower, or equal to the emitted frequency when the two objects are moving in the same direction. It depends on their relative speeds.
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____ are physical quantities that have both magnitude and direction .
Vectors are physical quantities that have ____ .
____ are quantities that have only a magnitude .
Scalars are quantities that have ____.
For vector addition , use the ____.
For vector ____, use the tip-to-tail method, or you can break the vector into its component parts and use the Pythagorean Theorem.