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A wheel of R=.20 m is mounted on a frictionless, horizontal axis,as shown in the figure. A light cord wrapped around the wheelsupports a m=0.50 kg box. When released from rest,the box falls with a downward acceleration a=1/2g.
a) What is the tension T on the string?
b) What is the angular acceleration α of the wheel?
c) What is the moment of inertia I of the wheel?
d) What is the the ratio of the kinetic energy KER ofthe wheel to the kinetic energy KET of the Box?
A car drives up a ramp inclined at 10 degrees above the horizontal,reaching a speed of 40 m/s at the end. It will jump a canyonthat is 101 meters wide. The lip of the takeoff ramp is 201meters above the floor of the canyon.
the position of a particle moving along an x axis is given by x 13.0t2 - 2.00t3 where x is in meters and t is in
An electric dipole is formed from ±1.0nCcharges spaced 2.00mm apart, What is the electric field strength at the points (x, y) = (14.0 cm , 0 cm),(x, y) = (0 cm, 14.0 cm)
An array of four charges is arranged along the x-axis at intervals of d = 4.8 m. If three of the charges are the same, q = +0.5 µC, and the charge at the far right is -0.5 µC, what is the potential at the origin
A car of mass M = 800kg travelling at 50km/hour enters a banked turn covered with ice. The road is banked at an angle 20degrees, and there is no friction between the road and the car's tires.
The electromagnetic wave spectrum is divided into two sections, ionizing and nonionizing radiation. Photons of about 12.4 eV occur right at the dividing line between the two sections
A car manufacturer claims that you can drive their new vehicle across a hill with a 47 degree slope before the vehicle starts to tip. If the car is 2.0 m wide, how high is its center of gravity?
q. a transverse electromagnetic plane wave with a frequency of 2.84 mhz travels directly away from you - z direction.
As soon as a traffic light turns gree, a car speeds up from rest to50.0 mi/h with constant acceleration 9.00 mi/(hr s). In theadjoining bike lane, a cyclist speeds up from rest to 20.0 mi/hwith a constant acceleration 13.0 mi/(hr s).
a block of mass 5.0 kg is pulled across a horizontal surface at a constant speed by a force 14 n directed at 35 degrees
Two tug boats are towing a ship. Each exerts a horizontal force of 5 tons and the angle between their towropes is 90 degrees. What net force is exerted on the ship?
A certain string can withstand a maximum tension of 36 N without breaking. What is the speed of the stone as the string breaks
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