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10C of charge are placed on a spherical conducting shell. Aparticle with a charge of -3C is placed at the center of the cavity. The net charge on the outer surface of the shell is?
A television set connected to a 121 V outlet consumes 88 W of power. How long does it take for 10 million electrons to pass through the television.
In order to view the craters of the Moon, you construct a refracting telescope from a lens with focal length 92.3 cm as its objective and a 14.3-cm focal length lens as its eyepiece
A spring has a spring constant of 578 N/m. When used tosuspend an object in air, the spring stretches by 0.0640 m. What buoyant force acts on the object
An ?-particle has a charge of +2e and a mass of 6.64 ? 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.06 X 106 V, What is the speed of the ?-particle
An object undergoes simple harmonic motion in the x direction. Its position is given by x=A sin(0.497 t + 4.32), What is the frequency of the object's motion in hertz (Hz)
A person pushes a 16-kg lawn mower at constand speed with a force F= 80N directed along the handle, which is at an angle of 45 degrees to the horizontal. Calculate the magnitude of the Normal force exerted on the mower.
A 5 kg block, measuring 10 cm per side, is held 50% submerged in water by a Helium balloon. If the density of Air is 1.18g/L, what is the diameter of the balloon
Suppose a car accelerates from rest, speeding up at a rate of +2.5m/s^2 while traveling a distance of 79 meters. How much time did it take the car to travel its TOTAL distance
A device found at some amusement parks asks you to "test your personal force" by grasping two conducting bars, What voltage does the machine have to apply to the conducting bars to drive a current of 30.0 mA through your body
In a physics laboratory experiment, a coil with 210 turns enclosing an area of 13cm^2 is rotated from a position, What is the average emf induced in the coil
Water in a pipe runs down a 20 m high hill. If the speed of the water on the top of the hill is 5.0 m/s and its pressure is 150 kPa, what is the pressure of the water at the bottom of the hill
A wire, 24 m long, moves at 4.8 m/s perpendicularly through a 0.59 T magnetic field. What emf is induced in the wire
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