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Four equal masses M are placed at equal intervals, l, along a horizontal straight rod whose mass can be ignored. The system is to be rotated about a vertical axis passing through the mass at the left end of the rod and perpendicular to it.
A) what is the moment of inertia of the system about this axis?
B) What minimum force, applied to the farthest mass, will impart an angular acceleration α?
C) what is the direction of this force?
water flows steadily through a horizontal pipe at the nozzle inlet the diameter is 6 in. at the nozzle outlet where the
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The temperature coefficient of resistivity for the metal gold is 0.0034 (C°)-1, and for tungsten it is 0.0045 (C°)-1. what is the percentage increase in the resistance in a tungsten wire
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neurons are components of the nervous system of the body that transmit signals as electrical impulses travel along
A life preserver made of Styrofoam is designed to support a person weighing 575 N, Find the volume of Styrofoam required if the body's volume is 0.0503 m^3
To test the quality of a tennis ball, you drop it onto the floor from a height of 4.00 m. What is the magnitude of its average acceleration during the contact with the floor
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