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Q25: A mixture of ethanol and gasoline is
Q28: Voltage has the units of _, which
Q47: Physics deals with matter, motion, force, and
Q58: Which laboratory observation would most support the
Q62: An automobile travels due north with a
Q68: The change in wave motion produced by
Q77: If a ray of light passes from
Q90: When light enters a denser medium, the
Q93: The process by which electricity can be
Q94: A(n) _ quantity has only magnitude.