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A string is wrapped many times around a pulley and is connected to a block with mb = 5.711 kg that is hanging vertically. The pulley consists of a wheel of radius 45.15 cm and mass mp = 5.453 kg constructed with spokes that have negligible mass. What is the magnitude of the acceleration of the block?
A 4.1-m-tall, 30-cm-diameter concrete column supports a 2.0×10^5kg load. By how much is the column compressed
As you think about it, you're not sure he threw the ball exactly horizontally, What is the range of speeds with which the ball might have left his hand, Enter the minimum and the maximum speed of the ball
A d = 4.40 mm diameter wire carries an electric current of I = 13.4 A when the electric field is E = 6.22×10-2 V/m along the wire. What is the resistivity of the wire
In the two-slit experiment, the distance between the slits and the screen is 1.10 m and the distance between the slits is 0.100 mm. what is the wavelength of light
A large storage tank, open to the atmosphere at the top and filled with water, develops a small hole in its side at a point 15.6 m below the water level. Determine the speed at which the water leaves the hole
In a series RCL circuit the dissipated power drops by a factor of 8.0 when the frequency of the generator is changed from the resonant frequency to a nonresonant frequency
It has been suggested that rotating cylinders about 12 mi long and 5.1 mi in diameter be placed in space and used as colonies. What angular speed should such a cylinder have so that the centripetal acceleration at its surface equals free-fall acce..
A loudspeaker at a rock concert generates 10-2 W/m2 at 18 m at a frequency of 1 kHz. Suppose that speaker spreads its energy uniformly in all directions. What is the intensity level at 18.00m.
A bartender slides a beer mug at 1.5 m/s towards a customer at the end of a frictionless bar that is 1.2m tall. how far way from the end of the bar does the mug hit
How much friction must be exerted between the skates and ice.
a wire lying in the plane of the page carries a current directed toward the bottom of the page. What path will the electron follow
A disk has radius R = 1.20 cm. Its surface charge density is 1.70 x 10-6 C/m2 from r = 0 to r = R/2 and 9.10 x 10-7 C/m2 from r = R/2 to r = R, What is the total charge (in C) on the disk
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