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A thin ring of radius R rotating with angular velocity ω isplaced flat on a horizontal table the coefficient of frictionbetween the ring and the table is μ.
A.) After what time will the ring stop spinning?
B.) How many revolutions will it make?
A parallel beam of light with an energy flux S of 10 W/cm2 falls for 1 hour on a perfectly reflecting plane mirror of 1.0 cm2 area. what force acts on the mirror
After a shipwreck, a solid steel spoon lies at the bottom of the ocean, 5.45km below the surface, What's the water pressure at that depth
an electron emitted by a heated cathode and accelerated through a potential difference of 2.0 kv enters a region with
Each tire of an automobile has an area of 0.026m^2 in contact with the ground. The weight of the automobile is 2.6x10^4 N. What is the pressure in the tires.
An artificial earth satellite has a circular orbit of radius 5.81 106 m (which means it is orbiting approximately -550 km above the surface of the earth) in an equatorial plane. Compute the (constant) speed of the satellite
A particle moves with constant acceleration a. The expression v1+at represents the particle's velocity at what instant in time.
A river flows due south with a speed of 2.30 . A man steers a motorboat across the river; his velocity relative to the water is 4.40. What is the velocity of the boat relative to the earth
an antelope is at a distance of 20.0 m from a converging lens of focal length30.0cm. the lens forms an image of the
A block of ice with mass 2.00 slides 0.895 down an inclined plane that slopes downward at an angle of 39.5 below the horizontal. what is its final speed
The objective lens in a microscope with a 25.0 cm long tube has a magnification of -50.0 and the eyepiece has a magnification of20.0. What is the focal length of the objective
a 69 g ice cube can slide without friction up and down a 35 degree slope. the ice cube is pressed against a spring at
A net force of256N accelerates a bike and rider at2.23m/s2. What is the mass of the bike and rider together
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