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A helium nucleus (charge +2e) moves through a potential difference deltaV= -0.300 kV. It's initial kinetic energy is 3.70 x 10-16 J. What is it's final kinetic energy?
A 2.2-μF capacitor is connected to a 8.4-V battery. What is the magnitude of the charge on each plate?
A 3.6-μF capacitor is connected to a 8.6-V battery. What is the magnitude of the charge on each plate?
If a capacitor has a capacitance of 10.2 μF and we wish to lower the potential diffence across the plates by 30.0 V, how much charge will we have to remove?
A cannon is fired from the ground. The cannonball initially travels with a speed of 300 m/s at an angel of 25 degrees with respect to the ground, What is the cannonballs maximum height
A projectile is fired with an initial speed of 60.7 m/s at an angle of 35.4 above the horizontal on a long flat firing range. Determine the total horizontal distance covered
question an golf ball sits on the optical axis of a spherical mirror at a distance of 17 cm. a virtual image is formed
(a) How much does a 70.0 kg person weigh on the Earth? (b) How much would she weigh on the Moon (gmoon = 0.166g)? (c) How much would she weigh on a neutron star where gstar = 1.43×1011g?
a long straight but hollow wire carries a current i uniformly distributed throughout its area excluding the hollow. the
A soccer player is at a park and kicks a ball with an initial speed of 18.00 m/s at an angle of 40 degrees above the horizontal. There is a 5m high wall 16m away from the child and in the direction of the kick. There is negligible air resistance. (us..
7.5 mol of helium are in a 18 L cylinder. The pressure gauge on the cylinder reads 67psi, What are the temperature of the gas in Celsius and the average kinetic energy of a helium atom
a carnot engine operates with an efficiency of 23.0 when the temperature of its cold reservoir is 274 k. assuming that
A roller coaster car moves 200 ft horizontally and then rises 135 ft at an angle of 30 degrees above the horizontal, What is its displacement from its starting point
A box weighing 77.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. Determine the force that the table exert on the box if the weight hanging on the other side of the pulley ..
the current in an rl circuit is zero at time t 0 and increases to 75 of its final value in 4.5 s. the time constant of
sound travels at a speed of about 344 in air. you see a distant flash of lightning and hear the thunder arrive 7.7
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