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A room with 3.0-m high ceilings has a metal plate on the floorwith V=0V and a separate metal plate on the ceiling. A 1.0 gglass ball charge to 4.9 nC is shot straight up at 5.0 m/s. How high does the ball go if the ceiling voltage is
(a) 3.0*10^6 Vand
(b) -3.0*10^6? Physics
To test the quality of a tennis ball, you drop it onto the floor from a height of 4.02 m. what is its average acceleration during that contact
A current given by I(t)=3t^3 where I is in amps when t is in seconds, passes through a 5- resistor. How much energy is dissipated as heat between t=3 s and t=5 s
Now suppose the friction is sufficient to keep the car from skidding. Compute the magnitude of the normal force exerted on the car by the road's surface.
A study shows that mammalian red blood cells (RBCs) carry electric charge resulting from 4.4 million (rabbit cells) to 15 million (human cells) excess electrons spread over their surfaces
A parachutist bails out and freely falls 50 m. Then the parachute opens, and thereafter she decelerates at 1.8 m/s2. At what height does the fall begin
find the velocity of their center of mass before the collision.
A cannonball is shot (from ground level) with an initial horizontal velocity of 40 m/s and an initial vertical velocity of 21 m/s, What is the initial angle of the cannonball with respect to the ground
The moon is a satellite that orbits the earth at a radius of 3.85 108 m. What is the orbital speed of the moon
a bicyclist of mass 54 kg puts all his weight on each downward-moving pedal as he pedals up a steep road. determine the magnitude of the maximum torque he exterts in the process
Two cars are traveling along a straight line in the same direction, the lead car at 25.2m/s, How long does it take for the chasing car to stop
A solenoid 300 turns having a length of 25.0 cm and a diameter of 10.0 cm has a current of 0.290 A.
A compressive force of 2.7×104N is exerted on the end of a 24-cm-long bone of cross-sectional area 3.9cm2. By how much will the bone shorten
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