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Part A: Determine the change in electric potential energy of a system of two charged objects when a -1.3-C charged object and a -4.7-C charged object move from an initial separation of 430 km to a final separation of 150 km
Part B: The potential energy is zero at infinity. Calculate the potential energy of the initial state.
A four-turn circular wire coil of radius 0.495 m lies in a plane perpendicular to a uniform magnetic field of magnitude 0.415 T. what is the average induced emf in the wire during this time
A particle is at the position (x,y,z)=(1.0,2.0,3.0)m. It istraveling with a vector velocity (-5.0,+2.8,-3.1)m/s. Its mass is3.8kg. What is its vector angular momentum about the origin
Why Constantan and Manganin are preferred to make standard resistance coil?
A ball is being thrown towards a wall with 25.0 m/s in a 40 degree angle. The distance to the wall is 22.0m, How high will the ball hit the wall
At a distance r1 from a point charge, the magnitude of the electric field created with the charge is 337 N/C. At a distance r2 from the charge, the field has a magnitude of 180 N/C. Discover the ratio r2/r1.
A grasshopper hops along a level road. On each hop, the grasshopper launches itself at angle θ0=45° and achieves a range R = 0.82m .What is the average horizontal speed of the grasshopper as it hops along the road? Assume that the time spent o..
q1. the two parallel plates in the figure below are 2.0 cm apart and the electric field strength between them is 2.1
Brad tries out a weight-loss plan that involves repeatedly lifting a 45.0-kg barbell from the floor over his head to a height of 2.3 m. If he is able to complete three such lifts per minute, how long will it take for him to lose 0.50 kg of fat? "Burn..
A skydiver deploys his parachute when he is 1020 directly above his desired landing spot. He then falls through the air at a steady 4.3m/s . There is a breeze blowing to the west at 2.0m/s.
A 1.3 {\rm kg} block and a2.3 {\rm kg} block are attached toopposite ends of a light rope. What is the acceleration of the lighter block
Water flowing through a hose at 4 m/s fills a 900L child's pool in 8 min, What is the diameter in cm of the hose
A laser-beam is fired through the air into a solid block of diamond (don't ask where we got it, it's a secret). What is the angle of refraction within the diamond
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