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A movig particle encounters an external electric field that decreases its kinetic energy from 9130 eV to 7570 eV as the particle moves from position A to position B. The electric potential at A is -66.0 V, and that at B is +38.0 V. Determine the charge of the particle. Include the algebraic sign (+ or -) with your answer.
Consider a regular hexagon of side length, L = 10cm. A charge, Q = 2µC, is located at each vertex, Find the electric field vector at the center
An object is placed 20.0 cm from a first converging lens of focal length 10.5 cm. Calculate the magnification of the first lens
0.0029 J of energy are stored in a parallel-plate capacitor whose plates each have area 0.30 m2 and are 1.5 mm apart
A positron is an antimatter particle identical in mass to an electron but with a positive charge, Calculate the energies of the three lowest states of positronium
q1. three identical train cars coupled together are rolling east at 1.2 ms. a fourth car travelling east at 4.4 ms
how far from the edge f the dock can theboy move until the plank is just on the verge of tipping? Explain how can the boy test this conclusion without falling in the water?Explain
Jennifer, who has a mass of 50.0 kg, is riding at 35.0 m/s in her red sports car when she must suddenly slamon the brakes to avoid hitting a deer crossing the road. What average force would the windshield have exerted on her
A spear fisherman is using m a laser rifle, he is standing in a stream 0.5m deep, if the laserstruck the water 5m out from the fisherman, how far was his feet from the fish
A girl hits a puck, giving it an initial velocity of 6m/s. If the coefficient of kinetic friction is 0.050, how far will the puck slide before stopping
A 0.170-kg piece of aluminum that has a temperature of -155° C is added to 1.5 kg of water that has a temperature of 2.5° C. determine the mass of water that has been frozen into ice
A 0.22-kg coffee mug is made from a material that has a specific heat capacity of 900 J/(kg · C°) and contains 0.23 kg of water. determine the minimum power rating of this heater
An outboard motor for a boat is rated at 36 hp h. If it can move a particular boat at a steady speed of 30 km/h , what is the total force resisting the motion of the boat
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