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Dipole in a Field An electric dipole, consistingof charges of magnitude 4.40 nC separatedby 7.80 µm, is in an electric fieldof strength 1200 N/C.
(a) What is the magnitude of the electricdipole moment?(b) What is the difference between the potential energiescorresponding to dipole orientations parallel to and antiparallelto the field?
A hollow plastic sphere is held below the surface of a freshwater lake by a cord anchored to the bottom of the lake. Calculate the buoyant force exerted by the water on the sphere
The captain of a boat wants to travel directly across a river that flows due east with a speed of 1.00 m/s. Estimate the speed of the boat relative to a person
A 0.300 kg} glider is moving to the right on a frictionless, horizontal air track with a speed of 0.900 m/s} when it makes a head-on collision with a stationary 0.150kg} glider. Find the final kinetic energy of first glider.
A rock is dropped off the side of a bridge and hits the water below 5.7 s later. What is the height of the bridge above the water
The planet Jupiter revolves around the Sun in a period of about 12 years (3.79 × 108 seconds). What is its mean distance from the center of the Sun? The mass of the Sun is 1.99 × 1030 kilograms. A. 1.1 × 10^11 meters B. 1.5 × 10^11 meters C. 2.3 ×..
A Van de Graaff accelerator is essentially a parallel plate capacitor. Such a machine is changed by an electrical potential of 2.5 x 10^6 volts. What is the energy density stored in the field
An airplane is flying in a horizontal circle with constant speed. In this situation, what is performing a harmonic oscillation
Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 29.2 m. Assume the density of the water is 1.00 103 kg/m3 and the air above is at a pressure of 101.3 kPa. Pa (b) What force is exerted by the water on the window of an..
q1. a propeller spins at 1890 revmin.a what is its angular velocity in rads?b what is the angular displacement of
An open-topped freight car with mass 24000 is coasting without friction along a level track. Since the rain is falling downward, how is it able to affect the horizontal motion of the car
A pot of hot water is boiling on your stove. The pot is in the shape of a round cylinder made of aluminum which is 10 cm in radius. The aluminum is 3 mm thick. You notice that after 25 minutes.
A tennis ball has a velocity of 22 m/s and a mass of 58.7 g. After the ball hits a tennis racket, the velocity becomes twice that of the original speed and goes in the opposite direction. What is the force between the ball and the racket
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