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Ohm's law:
Objectives- To find the relationship between voltage and current in a circuit composed of power source and resistors arranged in series and and parallel.
A served tennis ball is typically in contact with the racquet for 30 ms and starts from rest. In the fastest serve recorded, How far did the ball travel during the serve
A 175 kilogram ball on the end of a string is revolving uniformly in a horizontal circle of radius 0.500 meter. The ball makes 2.00 revolutions in a second. Compute the force a person must exert on opposite end of the string
A 965-kg satellite orbits the Earth at a constant altitude of 94-km. What is the change in the system's potential energy
A concrete block of msss 10kg is pulled 7.0m across a frictionless surface by means of a rope and the net work done on the block is 220J. obtain the magnitude of the normal force acting on the block
A crate of mass 13.5 kg is being pushed with a person across a horizontal floor. The coefficient of static friction among the crate and the surface is 0.500, while the coefficient of kinetic friction is 0.350. The person starts to push, but the crate..
A magnetic ?eld of 0.285 T exists in the region enclosed by a solenoid that has 329 turns and a diameter of 11.5 cm. What current is induced in the coil
a 2060 kg railroad flat car which can move with negligible friction is motionless next to a platform. a 240 kg sumo
A 1724 gram mass is on a horizontal surface with µk = 0.400, and is in contact with a mass less spring with a force constant of 595 N/m which is compressed. Obtain the distance the spring was compressed
A window air-conditioner unit absorbs 9.70×104J of heat per minute from the room being cooled, What is the energy efficiency rating of the unit
Water discharges from a horizontal pipe at the rate of 5.00 x 10-3 m3/s. At point A in the pipe where the cross-sectional area is 2.00 x 10-3 m2, What is the velocity of the water at point A
Two flat surfaces are exposed to a uniform, horizontal magnetic field of magnitude 0.42 T. When viewed edge-on, Determine the area of the first surface
A cannon tilted up at a 30° angle fires a cannon ball at 90 m/s from atop a 16 m high fortress wall. What is the ball's impact speed on the ground below
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