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Two small charges with a mass of 1.0 g each are connected by 2.0-cm-long insulating rod of negligible mass. Each ball has the same magnitude of charge of 10 nC, but with opposite sign. The rod is held in a 1.0 × 104 N/C uniform electric field at the angle of 30°, then released to rotate around its center of mass.
What is the dipole moment of the rod?
Calculate the magnitude of the torque exerted on the rod by the electric field.
Obtain the moment of inertia around the center of mass.
What is the initial angular acceleration when the rod is released?
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A point charge q = ?2.3 nC is initially at rest adjacent to the negative plate of a capacitor, What is the potential difference between the plates
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A uniform plank of length 5.8m and weight 229N rests horizontally on two supports, with 1.10 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 450N walk on the overhanging part of the plank be..
A point source of light is submerged 2.4 m below the surface of a lake and emits rays in all directions. What is the maximum radius that this circle could have
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The intensity of an earthquake wave passing through the Earth is measured to be 2.5×106 at a distance of 55 from the source. At what rate did energy pass through an area of 3.0 at 1.0
A Carnot engine absorbs 4.65 x 103 J from the hot reservoir and expels 3.12 x 103 J to the cold reservoir during each engine cycle. what is the temperature of the hot reservoir
Six artificial satellites complete one circular orbit around a space station in the same amount of time. Each satellite has mass and radius of orbit. The satellites fire rockets that provide force needed to keep a circular orbit around the space stat..
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.70 104 m/s, and the radius of the orbit is5.00 106 m. What is the orbital speed of the second satellite
A 4.8-kg bucket of water is raised from a well by a rope. find the force exerted by the rope on the bucket
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