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A uniform, cylindrical pulley of mass M=12.7 kg and radius R=0.636 m rotates freely about a fixed horizontal axis. A block of mass m=3.07 kg, which moves downward, is attached to a string which is wrapped around the pulley. What is the magnitude of the angular acceleration of the pulley?
A ship sets out to sail to a point 182-km due north. An unexpected storm blows the ship to a point 158-km due east of its starting point. How far must it now sail to reach its original destination.
A body moves with respect to a stationary reference point. At time 1.0 s, position of the body is given by vector R1 bar that points to the east of the reference point, Find the average velocity of the body
A small block of mass m = 140 g is released from rest at point along the horizontal diameter on the inside of a frictionless, hemispherical bowl of radius R = 28.0 cm as shown in the figure below. the height = 2R/3 = c (d) Calculate its kinetic energ..
The electric field at 0.50 m away from the center of a thin metallic spherical shell of radius 0.30 m is - 400×10^3 V/m. the charge density at the outer surface of the sphere is:
Let us model the electric behavior of such a molecule by a pair of ±1.60 × 10-19-C charges connected by a spring with force constant 8.29 × 10-4 N/m, Find the charge separation distance in an electric field of 6.41 × 105 N/C
A space traveler weighs 535 N on earth. What would the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth.
The largest and smallest slits in these experiments are 0.16mm and 0.04mm wide, respectively. How many wavelengths wide are these slits
the outer wall of a building is constructed from concrete blocks. if the wall is 5.0 m long at 20 degrees celcius, How much shorter is it on a cold day
In the Bohr model of the hydrogen atom, the electron moves in a circular orbit of radius 5.3 x 10^-11 m with a speed of 2.2 x 10^6 m/s. Find the magnitude of the magnetic field that the electron produces at the location of the nucleus (treated as a ..
A spool whose inner core has a radius of 1.00 cm and whose end caps have a radius of 1.50 cm has a string tightly wound around the inner core. what is the speed of the spools ground-touching point
the surface of the sun has a temperature of about 5800 k. if the radius of the sun is 7 x 10^8 m, determine the power output of the sun
Fred and Barney are two electric charges that are initially held 1 meter apart and experience an electric repulsion of 10 pounds of force. What would be the force of repulsion between them be if the two were moved closer together so that they were..
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