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A particle has a charge of +1.7 %u03BCC and moves from point A to point B, a distance of 0.29 m. The particle experiences a constant electric force, and its motion is along the line of action of the force. The difference between the particle's electric potential energy at A and B is EPEA - EPEB = +8.4 x 10-4 J.
(a) Find the magnitude of the electric force that acts on the particle.
(b) Find the magnitude of the electric field that the particle experiences.
A power station with an efficiency of 0.5 generates 10^8W of electric power and dissipates 1.00 x10^8 W of thermal energy to the cooling water that flows through it.
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The density of ice is 917 kg/m3 and the density of sea water is 1025 kg/m3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 5.2m3. What is weight of the heaviest bear that the ice can support without sinking complete..
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