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A small rigid object carries positive and negative 4.00 nC charges. It is oriented so that the positive charge has coordinates (-1.20 mm, 1.50 mm) and the negative charge is at the point (1.40 mm, -1.30 mm).
(a) Find the electric dipole moment of the object. The object is placed in an electric field Ev= (7800 i- 4900 j) N/C
(b) Find the torque acting on the object.
(c) Find the potential energy of the object field system when the object is in this orientation.
(d) Assuming the orientation of the object can change, find the difference between the maximum and the minimum potential energies of the system.
Suppose a 63.00 kg boy and a 50.00 kg girl use a mass less rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.00 m/s2, find out the magnitude of the acceleration of the boy toward girl.
Determine the image distance for an object do=7.900 cm from a diverging lens of radius of curvature 6.320 cm and index of refraction 1.800.
A block of mass m = 2.10 kg is pushed a distance d = 4.20 m along a frictionless horizontal table by a constant applied force of magnitude F = 16.0 N, Determine the work done on the block by the applied force
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Estimate the time the ball is in contact with the floor to be 0.06 seconds. Compute the average force the floor exerts on the ball.
A 200-turn circular coil of wire has a radius of 10.0 cm and a total resistance of 0.115 Ohms. Determine the voltage of the power supply creating the current in the coil
A 900- kg car collides with a 1300- kg car that was initially at rest at the origin of an x-y coordinate system. What was the initial speed of the lighter car (in km/h)
the solar constant is the radiant flux density from the sun at the earth's surface and is about 0.135 W/cm^2 when the sun is directly overhead, find the amplitude of the E and B fields
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