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Four charged particles are at the corners of a square of side a as shown in the figure below. (Let A = 3, B = 4, and C = 5.)
(a) Determine the electric field at the location of charge q. (Use the following as necessary: q, a, and ke.) magnitude direction ° (counterclockwise from the +x-axis)
(b) Determine the total electric force exerted on q. (Use the following as necessary: q, a, and ke.) magnitude direction ° (counterclockwise from the +x-axis)
You combine two thin lenses by placing them in contact so that their axes coincide, Find the focal length of this compound lens
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A small sphere with a charge of -5.9 10-7 C is placed in a uniform electric field of magnitude 1.9 106 N/C pointing to the west. What is the magnitude and direction of the force on the sphere due to the electric field?
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Two boxes, m1 = 1.0 kg with a coefficient of kinetic friction of 0.10, and m2 = 2.0kg with a coefficient of 0.20, are placed on a plane inclined at 0 = 30o.
A sophomore with nothing better to do adds heat to 0.350 kg of ice at 0.00°C until it is all melted. What is the change in entropy of the water
The Moon has an angular size of 0.50 ? when viewed with unaided vision from Earth. What is the angular size of the Moon as seen through this telescope
Heather and Jerry are standing on a bridge 45m above a river. Heather throws a rock straight down with a speed of 19m/s. Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Overlook air resistance. How much t..
A Coast Guard cutter detects an unidentified ship at a distance of 20.2 km in the direction 16.7° east of north. The ship is traveling at 24 km/h on a course at 40.1° east of north. The Coast Guard wishes to send a speedboat to intercept the vesse..
Explain by how much does the potential energy of a 23.0-kg child increase when the child climbs a normal staircase to the second floor?
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