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Two small charges with a mass of 1.0 g each are connected by a 2.0 cm long insulating rod of negligible mass. Each ball has the same magnitude of charge of 10 nC, but with opposite signs. The rod is held in a 1.0*10^4 N/C uniform electric field at the angle of 30 degrees, then released to rotate around its center of mass.
a) What is teh dipole moment of the rod?
b) Calculate the magnitude of the torque exerted on the rod by the electric field.
c) Obtain the moment of inertia around the center of mass.
d) What is the initial angular acceleration when the rod is released?
what magnitude of horizontal force must the person apply to keep it moving with constant velocity? c) If the person continued to push with the force used to start the motion, what would be the acceleration of the trunk.
One solenoid is centered inside another. The outer one has a length of 47.0cm and contains 6800 coils, Find the emf induced in the inner solenoid
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Three charges, +2.5 ?C, -4.8 ?C, and -6.3 ?C are located at (-0.20 m, 0.15 m), (0.50 m, -0.35 m), and (-0.42 m, -0.32 m), respectively
David is driving a steady 21 m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.20 m/s^2 at the instant as David passes.
A capacitor C is charged to an initial potential of 60.0 V, with an initial charge of Q0. It is in a circuit with a switch, Calculate the energy in the circuit after a time of 11 periods
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A train is traveling down a straight track at 29 m/s when the engineer applies the brakes, resulting in an acceleration of 1.0 m/s2 as long as the train is in motion. How far does the train move during a 58-s time interval starting at the instant ..
The intensity (in W/m2) of one sound is 7.12 times as great as the intensity of another sound. Relative to the quieter sound
To estimate the muzzle speed of a blow dart, fire dart straight up into the air and time how long it takes to come back down. Roughly half of that time is the time for object to decelerate from its initial velocity to motionless. Estimation the in..
If you throw a ball upward with an initial speed of 4 m/s at 1.5 m above the ground find the flying time for this free fall motio
The howler monkey is the loudest land animal and, under some circumstances, can be heard up to a distance of 8.9 km, What is the ratio of the acoustic intensity produced by the juvenile howler to the reference intensity
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