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A box is pushed across a floor by a 100 N force at a constant velocity. What is the net force on the box? What is the total frictional force between the box and the floor?
Draw a FBD for both sets of washers when you had 5 suspended on each side. Calculate and label the magnitude of all forces
A copper bar 30.0 cm long is perpendicular to a field of flux density 0.80 Wb/m2 and moves at right angles to the field with a speed of 0.50 m/s
The central star of a planetary nebula emits ultraviolet light with wavelength 104nm, What is the first-order diffraction angle
A rock is thrown vertically upward with a speed of 19.0m/s from the roof of a building that is 70.0m above the ground. What is the speed of the rock just before it strikes the ground
An electron is in circular motion of with a speed of 2 x 104 meter per second while in a 40 mT magnetic field. Determine the diameter of the circular trajectory
A ship is heading off to Barnard's star at 0.700c. When it passed a space station(at rest with respect to the Earth) few days out from Earth, determine the direction and speed of each torpedo as seen by the station
PRACTICE IT Use the worked example above to help you solve this problem. A proton is released from rest at x = ?2.00 cm in a constant electric field with magnitude 1.50 103 N/C pointing in the positive x-direction. (a) Assuming an initial speed of..
A particle of mass M decays into two identical particles each of mass m, where m = 0.4M. Prior to the decay, the particle of mass M has a total energy of 4 Mc2 in the laboratory reference frame. The velocities of decay product are along the directi..
two small plastic balls hang from threads of negligible mass. each ball has a mass of 0.14 g and a charge of magnitude
question ultrasonic acoustic waves are diffracted by a pair of parallel slits 100mm apart. the zeros in the diffraction
A solid wire with a radius of 3.00 mm carries a current of 0.0530 A. Assume the current is uniformly distributed in the wire. obtain the magnetic field strength at the center of the wire
Alpha particles of kinetic energy K are scattered either from a gold foil or a silver foil of identical thickness. Find the ratio of the number of particles scattered
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