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A 0.56 m wire, carries a current, 0.49 A along the positive x-axis and it is in a magnetic field which points in the negative z-direction. The center of mass of the wire is 0.39 kg. What magnitude of the magnetic field necessary so that the force from the magnetic field interaction will cancel with the force of gravity on the wire to make it appear as though it is floating?
A CD has a mass of 17 g and a radius of 6.0 cm. When inserted into a player, determine the net torque acting on it
a 9 volt battery contains a total of 1.78 coulombs. when thebattery is connected in a circuit, the positive and negativechanges are split apart. Find the increase in potential energy
An ice cube of mass 0.018 kg, at the temperature of the freezing point of water, is surrounded by water at a temperature just above the freezing point. What is the change in entropy of the ice cube as it melts? (The latent heat of fusion of water at ..
An ultracentrifuge having a diameter of 17.3 cm produces an extremely large acceleration of 2.71E+5 m/s2. estimate the angular speed of the centrifuge
A horse pulls a cart on a level road with a force of 140.0 Newton at angle of 25.0 degree with respect to the horizontal. Compute how much work does the horse do in 12.6 minute
A bus accelerates at 1.5 m/s/s from rest for 12s. It then travels at constant speed for 25s, How far did the bus travel
Two point charges, q1 = +23.0 nC and q2 = +10.0 nC, are located on the x-axis at x = 0 and x = 1.00 m, respectively. Where on the x-axis is the electric field equal to zero
How much waste heat is produced by an electrical power station that uses 1.00 ? 1014 J of heat input with an efficiency of 40.0%? What is the ratio of waste heat to work output
What is the energy of a single photon of red light with a wavelength of 633 nm?
Find the maximum torsional shear stress in a 75 mm diameter shaft transmitting 40 KW power at 1.33 r/s if the maximum twisting moment exceeds the minimum by 40 per cent. What is the greatest twist in degrees per metre length if G =87 GPa?
A steel ball with radius 1 cm is rolling along a table with speed 20.00 cm/sec when it starts to roll up an incline. How high above the table level would it rise before stopping.
A 76 g, 31 cm long road hang vertically on frictionless horizontal axle passing through its center a 10 gram ball of clay travelling horizontally at 2.6m/s hits and stick to the very bottom tip of the rod. To what maximum angle, measured from ..
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