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Two concentric shells of uniform density having masses M1 and M2are situated. Discover the force on a particle of mass m when the particle is located at (a) r = a, note speed of propagation of gravitation in Newtonian physics. (b) r = b, and (c) r = c. The distance r is measured from the center of the shells.
A 26 kg gun is standing on a frictionless surface. The gun fires a 55.2 g bullet with a nmuzzle velocity of 320 m/s. Calculate the momentum of the gun immediately after the gun wasfired
Physicists model a magnetic field by assigning to every point in space a vector that represents the strength and direction of the field at that point, What is the combined magnetic field at this point
A 1.60 kg ball and a 7.20 kg ball are connected by an 80.0 cm long massless, rigid rod. What is the rotational kinetic energy of the structure
Consider a motor that exerts a constant torque of 25.0 to a horizontal platform whose moment of inertia is 50.0. How long does it take for the motor to do the work done on the platform
A lead ball weighing 10 N falls 0.8 m from rest into a bucket of sand. The ball stops after making a crater 0.2 m deep. According to the work-energy theorem the work done by the sand on the ball in bringing it to rest is...?
X-rays are scattered from a target at an angle of 78.0° with the direction of the incident beam. Find the wavelength shift of the scattered x-rays
a stone is thrown upward at an angle of 43degrees above the horizontal. it's maximum height during the trajectory is 55m. what was the stone's initial speed
A motorcyclist is traveling along a road. He sees another cyclist ahead and starts to accelerate for 5 seconds to pass him. What is the angular displacement of the wheels
The E string of a violin has a mass per unit length of .0004 kg/m , and must be tuned to a frequency of 660 Hz. The vibrating length of the string is .33 m Calculate the tension when the string is in tune.
A ski jumper has 1.2 ´ 10 J of potential energy at the top of the ski jump. The friction on the jump slope is small, but not negligible. What can you end about the ski jumper's kinetic energy at the bottom of the jump.
A disk with moment of inertia I1 rotates about a frictionless vertical axle with angular speed wi. find the ratio of the final to the initial rotational energy
Two identical conducting spheres, fixed in place, attract each other with a force of 0.083 N when their center to center separation is 45.00 cm. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres have a..
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