Physics, 02.08.2019 05:30 BreBreDoeCCx
Why is the work output of a machine never equal to the work input? a. some work input is used to overcome friction. b. input distance never equals output distance. c. some work output is used to overcome friction.
Answers: 1
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Awheelhas a radius of 4.8 m. howfar (path length) does a point on the circumference travel if thewheel is rotated through angles of 30°, 30 rad, and 30 rev,respectively?
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Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m
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2. which of the following devices is associated with the reception of radio signals? o a. demodulator o b. transmitting antenna o c. oscillator o d. microphone
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Why is the work output of a machine never equal to the work input? a. some work input is used to ov...
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