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Q.Two stationary positive point charges, charge 1 of magnitude 3.45 nC and charge 2 of magnitude 1.50 nC, are separated by a distance of 52.0 cm. An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges.
What is the speed v_final of the electron when it is 10.0 cm from charge 1?
A kayaker needs to paddle north across an 85 m wide harbor. The tide is going out, creating a tidal current that flows to the east at 1.7 m/s. The kayaker can paddle with the speed of 3.0 m/s.
Compute the Brewster’s angle and angle of refraction.
Megan's mass is 27 kg. She climbs the 4.8 m ladder of a slide and reaches a velocity of 3.6 m/s at the bottom of the slide. How much work was completed by friction on Megan? Imagine that air resistance is negligible.
A person holds a ladder horizontally at its center. Treating ladder as a uniform rod of length 3.30 m and mass 7.43 kg, find out the torque the person must exert on the ladder to give it an angular acceleration of 0.405 rad/s2.
What fraction of the initial kinetic energy was transferred
The metal equilateral triangle in the figure, 20 {rm cm} on each side, is halfway into a 0.10 {rm T} magnetic field.What is the magnetic flux through triangle.
A meter stick lies on the bottom of a 100 cm long tank with its zero mark against the left edge. You look into the tank at a 30 angle, with your line of sight just grazing the upper left edge of the tank.
A 23.00 kg chair initially at rest on a horizontal floor requires a 364N horizontal force to set it in motion. Once the chair is in motion, a 328N horizontal force keeps it moving at a constant velocity. A 23.00 kg chair initially at rest on a horizo..
A projectile is fired at an upward angle of 45° from the top of a 308m cliff with a speed of 198 m/s. What will be its speed while it strikes the ground below? (Use conservation of energy.)
A circular coil enclosing an area of 96 cm2 is made of 199 turns of copper wire. The wire making up the coil has resistance of 3.0 , and the ends of the wire are linked to form a closed circuit.
Compute magnitude of the average emf
Find out the minimum horizontal velocity magnitude of the acceleration of the blocks
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