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Question:
A cue ball at rest on a frictionless pool table is hit dead center by a pool stick, giving it an impulse of +1.50 Ns. The ball slides (the combination of hitting the ball dead center and no friction allows this to happen) along the table and makes a head-on elastic collision with another pool ball. If both pool balls have a mass of 0.166 kg, determine the velocity of the second ball the instant after the collision.
the potential energy stored in a magnetic field arises becausea of the knestic energy of the moving charges.b of the
A small block of mass m is kept on a long plank of same mass. Ground is smooth and coefficient of friction between block and plank is 0.5. At t=0 initial velocity of 20 m/s is given to the system. At t=1sec plank is suddenly hinged such that it co..
A stone held just beneath the surface of a swimming pool isreleased and sinks to the bottom at a constant speed of 0.48 m/s.What is the apparent speed of the stone, as viewed from directlyabove by an observer who is in air?
What is the repulsive force between two pith balls that are 12.0 cm apart and have equal charges of -26.0 nC?
A ball has a diameter of 3.80 cm andaverage density of 0.0839g/cm3. What force is required to hold it completely submerged under water
An electron and a proton are each accelerated through a potential difference of 10.0 million volts. What is the kinetic energy of the electron? What is the kinetic energy of the proton? Calculate the momentum (MeV/c) of the proton using classical equ..
The ends of a cylindrical steel rod are maintained at two different temperatures. The rod conducts heat from one end to the other at a rate of 10 J/s. At what rate would a steel rod twice as long and twice the diameter conduct heat between the same t..
An electron ( mass = 9.11×10?31kg ) leaves one end of a TV picture tube with zero initial speed and travels in a straight line to the accelerating grid, If the accelerating force is constant, compute the acceleration of the electron
A sphere has radius R1 and uniform volume charge density ρ. A spherical cavity with radius R2 is carved out at an arbitrary loca- tion inside the larger sphere. Show that the electric field inside the cavity is uniform (in both magnitude and dir..
Assume that the direction from the pitcher to the batter is the positive direction. What is the correct value of the answer? Be careful to follow significant digit rules.
Use the equation Q = (m)(c)(change in T) to calculate the heat "lost" by the hot water. Show your work using the problem-solving method shown in previous rubrics. The specific heat for water (c) is 4186 J/(kg * Co).
A 40 cm-diameter potter's wheel with a mass of 27 kg is spinning at 180 rpm. how long will it take for the wheel to come to a stop in her hands
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