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The plates of a parallel-plate capacitor are fully charged by a battery and then disconnected from the battery. If the plates are slowly pulled apart, what happens to the charge on the plates?
A) it increases
B) it decreases
C) it remains constant
D) There is no way to tell from the given information
A 640-g hollow ball 21cm in diameter is suspended by a wire and is undergoing torsional oscillations at a frequency of 0.78 Hz
The two blocks, m1 = 1.40 kg and m2 = 5, are connected by a mass less rope that passes over a pulley. The pulley is 12 cm in diameter and has a mass of 2.0 kg.
A 2.76-kg steel ball strikes a massive wall at 10.0 m/s at an angle of ? = 60.0° with the plane of the wall. find the average force exerted by the wall on the ball
A mechanic pushes a 2.20 x10^3 kg car from rest to a speed of v, doing 5400 J of work in the process. During this time, the car moves 28.0 m. Neglecting friction between car and road, find each of the following.
A 2.30-gram air inflated balloon is given an excess negative charge, q1 = -3.50 × 10-8 C, by rubbing it with a blanket. How much charge, q2, does the rod have
A charge of 0.99 C is spread uniformly throughout a 18 cm rod of radius 4 mm. What are the volume and linear charge densities?
Determine the thermal energy dissipated from brakes in a 1600 kilogram vehicle that descends a 20 degree hill
jane looking for tarzan is running at top speed 6.6 ms and grabs a vine hanging vertically from a tall tree in the
A 29.5 kg block is connected to an empty 1kg bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.50 and the coefficient of kinetic friction between the table and the block is..
The rms current in a copy machine is 3.00 A, and the resistance of the machine is14.6 Ω. What is the average power?
A cart is moving horizontally with constant velocity Vx. The cart then shoots a ball with an initial velocity straight up relative to the cart. what is the horizontal distance traveled by the cart
A mosquito flaps its wings 650 vibrations per second, which produces the annoying 650 Hz buzz. The speed of sound is 340 m/s. How far does the sound travel among wing beats? In other words, find the wavelength of the mosquito's sound.
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