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An electron by a charge of -67 μC is on the left, in the middle a proton charged with 45μC, and on the right an electron with a charge of -83μC. The middle charge in 72 cm away from each of the outer. A) What is the net force of the middle charge? B) What is the net force of the left charge?
You throw a 21.6 N rock vertically into the air from ground level. You observe that when it is a height 14.4m above the ground, What is its speed just as it left the ground
A grinding wheel in the shape of a solid disk is 0.300m in diameter and has a mass of 2.50kg . The wheel is rotating at 2100rpm about an axis through its center. A) What is its kinetic energy? B) How far would it have to drop in free fall to acquire ..
Calculate the nonconservative work
Suppose that a comet that was seen in 627 A.D. by Chinese astronomers was spotted again in year 1988. determine the semimajor axis of the comet's orbit
A cave rescue team lifts an injured spelunker directly upward andout of a sinkhole by means of a motor-driven cable. The lift isperformed in three stages, each requiring a vertical distance of15.0 m:
A solenoid of radius 2.2 cm has350 turns and a length of 17 cm. Discover its inductance. Find the rate at which current should change through it to produce an emf of 75 mV.
Mark pushes his broken car 150m down the block to his friend's house. He has to exert a 110N force to push the car at a constant speed. How much Thermal Energy is created
A 12kg box is decelerated from an initial speed of 20m/s to rest in a distance of 13m while traveling up a 42 degree incline. What was the net work done on the box by friction
In a certain automobile engine with an efficiency of 20.1%, combustion of gasoline in one cylinder releases 520 J of heat. Find the total mechanical power produced by all four cylinders, operating at 55 cycles/s, or 3300 rpm
Block A (m = 1.20 kg), originally at rest, is pushed with a net horizontal force of 7.86 N for 5.34 m as it slides across a horizontal, What is its impact speed
A suitcase full of platinum sits at the bottom of a lake. A recovery diver finds that as he lifts the suitcase to the surface, What is the volume of the large suitcase
Three moles of an ideal monatomic gas expand isothermally at a temperature of 21°C. If the volume of the gas quadruples during this process, what is the heat flow into the gas
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