170 m/s
Physics, 31.01.2020 04:51 Amholloway13
A0.25 m wave has a frequency of 686 hz. what is the speed of the wave?
170 m/s
340 m/s
686 m/s
1,370 m/s
Answers: 3
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Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:
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A0.25 m wave has a frequency of 686 hz. what is the speed of the wave?
170 m/s
170 m/s
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