A small button placed on a horizontal rotating platform with diameter 0.326 mm will revolve with the platform when it is brought up to a rotational speed of 42.0 rev/minrev/min , provided the button is a distance no more than 0.149 mm from the axis.1) What is the coefficient of static friction between the button and the platform? 2) How far from the axis can the button be placed, without slipping, if the platform rotates at 57.0 rev/min?
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Physics, 22.06.2019 14:40, akitchen10
A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.
Answers: 1
A small button placed on a horizontal rotating platform with diameter 0.326 mm will revolve with the...
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