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A bouncy ball is dropped from a heigh h above a floor. If every bounce robs the ball of 6.7% of its kinetic energy just before the bounce, and the ball bounces ten times on the floor, how high will it reach before its eleventh bounce?
When a potential difference of 2 V is applied across the ends of a wire of 5 m length, a current of 1A is found to flow through it. Calculate: the resistance per unit length of the wire
What angle does water surface make with the horizontal
A simple pendulum on the surface of Earth is found to undergo 13.0 complete small-amplitude oscillations in 7.05 s
Then, a thin conducting wire connects the spheres, redistributing the charge on each sphere. When the wire is removed the spheres still repel but with a force of F2 = 0.100 N. Using this information, find the initial charge on each sphere, q1 and ..
At 2500K hydrogen gas (H2) adds two more degrees of freedom to its motion. It has three translation motions, two rotational motions, What would be its kinetic energy per molecule
The 87?F capacitor in a defibrillator unit supplies an average of 6500 W of power, To what voltage is the capacitor charged
A 33.6 m length of copper wire at 23?C has aradius of 0.19 mm . The resistivity of copperis 1.7 × 10?8 ? m, determine the current in the wire
Two trains approach each other on parallel tracks. how long (in seconds) will it be before they pass each other
The drawing shows three particles far away from any other objects and located on a straight line. Find the net gravitational force
the magnitude of the net electric field. A lead ball is dropped into a lake from a diving board 6.40 above the water. After entering the water, it sinks to the bottom with a constant velocity equal to the velocity with which it hit the water.
In a Millikan oil-drop experiment (Section 22-8), a uniform electric field of 3.91 x 105 N/C is maintained in the region between two plates separated by 6.80 cm
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. What is the radius of the chamber
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