Physics, 10.10.2019 21:30 uchechukwueigwe
Asmall button placed on a horizontal rotating platform with diameter 0.328 m will revolve with the platform when it is brought up to a rotational speed of 35.0 rev/min , provided the button is a distance no more than 0.140 m from the axis. what is the coefficient of static friction between the button and the platform? how far from the axis can the button be placed, without slipping, if the platform rotates at 63.0rev/min?
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Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?
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The weights of bags filled by a machine are normally distributed with a standard deviation of 0.05 kilograms and a mean that can be set by the operator. at what level should the mean weight be set if it required that only 1% of the bags weigh less than 9.5 kilograms? round the answer to 2 decimal places.
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Asmall button placed on a horizontal rotating platform with diameter 0.328 m will revolve with the p...
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