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Q. A stone has a mass of 6.00 x10-3 kg and is wedged into the tread of an automobile tire. The coefficient of static friction between the stone and each side of the tread channel is 0.84. When the tire surface is rotating at the maximum speed of 18 m/s the stone flies out of the tread. The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 1.8 N. Suppose that only static friction supplies the centripetal force, and determine the radius.
How much time passes by they collide
A 100 kg cannon at rest contains a 10-kg cannon ball. When fired, cannon ball leaved the cannon with a speed of 450 m/s. What is the recoil speed of the cannon.
Two wires are identical, except that one is aluminium and one is gold. The aluminium wire has a resistance of 0.18. What is resistance of the gold wire.
A 1.65 block is attached to a spring with spring constant 17. While the block is sitting at rest, a student hits it with the hammer and almost instantaneously gives it a speed of 59.
Explorer is caught in a whiteout (in which snowfall is so thick that the ground cannot be distinguished from the sky) as returning to base camp.
What minimum horsepower must a motor have to be capable to drag a 290 box along a level floor at a speed of 1.05 if the coefficient of friction is 0.50.
Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.
Bacteria vary somewhat in size, but a diameter of 2.0 nanometers is not unusual. What would be (a) volume (in cubic centimeters) and (b) surface area (in square millimeters) of such a bacterium, assuming that it is spherical.
A bullet is fired horizontally from a 100 m, t all building with a speed of 900 m? How long will it take to hit the ground?
A 1.50 kg box (position is given in meters and time is given in seconds) slides on ice for 1.5 seconds and then encounters a rough surface. Find out the momentum at the start of the animation. Is momentum conserved during the first 1.5 seconds? Is..
What is the kinetic energy
Before starting this problem, review Conceptual. The force vector A has the magnitude of 75.0 newtons (N) and points due east. The force vector B has a magnitude of 101 N and points 72.9 ° north of east.
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