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Two particles, with charges of 20 nC and -20nC, are placed at the points with coordinates (0, 4 cm) and (0, -4 cm). A particle with charge 10 nC is located at the origin.(a) Find the electric potential energy of the configuration of the three fixed charges.(b) A fourth particle, with a mass of 2.00*10^-13 kg and a charge of 40 nC is released from rest at the point (3 cm, 0). Find its speed after it has moved freely to a very large distance away.
A 10.0 kg mess kit sliding on a frictionless surface explodes into two 5 kg parts, one moving at 4.5 m/s, due north, What was the original speed of the mess kit
A block of unknown mass is attached to a spring of force constant5.00 N/m and undergoes simple harmonicmotion and an amplitude of 10.0 cm. Determine the maximum acceleration of the block
In 1916 Milikan used measurements of the kinetic energy of photoelectrons to detemine plancks constant
A ball with mass m = 0.170 kg and kinetic energy K1 = 2.17 J collides elastically with a second ball of thesame mass that is initially at rest. find the kinetic energy of the first ball after the collision
A 4.0-m-long steel wire has a cross-sectional area of 0.050cm^{2}. Its proportional limit has a value of 0.0016 times its Young's modulus. What is the maximum weight that the wire can support
A vertical wall (7.2 m 2.8 m) in a house faces due east. A uniform electric field has a magnitude of 150 N/C. What is the electric flux through the wall
A hot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. What is the acceleration of the rising balloon
A bowling ball of mass 7.1 kg and diameter 21.6 cm is thrown down the alley at a speed of 9.5 m/s. What is the final angular velocity and linear velocity
q1. a rabbit runs in the straight line with a velocity of 1.6 ms for a period of time rests for 12 s and then runs
Two narrow slits separated by 0.51 mm are illuminated by monochromatic light of wavelength 670 nm. How many bright fringes can be seen on a screen 1.3 cm wide placed 1.1 m in front of the slits.
A football player carrying the ball runs straight ahead at the line of scrimmage and directly into a wall of defensive linemen. Find the magnitude and direction of his average acceleration
The electric field on the surface of a 11 cm diameter sphere is perpendicular to the sphere and has a magnitude 51 kN/C. What is the electric flux through the sphere
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