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A charge of +45.9 C is at the origin. When charge Q is placed at 2 m along the positive x axis, the electric field at 2 m along the negative x axis becomes zero.
What is the value of Q?
A plane, diving with constant speed at an angle of 49 ° with the vertical, releases a projectile at an altitude of 570 m. The projectile hits the ground 7.0 s after release.
A car of mass M = 800kg travelling at 50km/hour enters a banked turn covered with ice. The road is banked at an angle 20degrees, and there is no friction between the road and the car's tires.
Ice at -13.7 °C and steam at 114 °C are brought together at atmospheric pressure in a perfectly insulated container. After thermal equilibrium is reached, the liquid phase at 43.3 °C is present. Ignoring container and equilibrium vapour pressure of t..
A ball with a horizontal speed of 1.25m/s rolls off a bench 1.00m/s above the floor. how long does it take to reach the floor.How far from a point on the floor directly below the edge of the bench would the ball land.
Determine the acceleration of the bullet while in the barrel? A bullet in a rifle barrel does not have constant acceleration, but constant acceleration is to be assumed for this problem.
A circular parallel-plate capacitor with a spacing of 3.2 mm is charged to produce a uniform electric field with strength of 1.50 multiplied by 106 N/C. What plate radius is required if the stored charge is -15.6 µC.
A 200 g block hangs from a spring with spring constant 10 N/m. At t=0 s the block is 23 cm below the equilibrium point and moving upward with the speed of 125 cm/s. What are block's oscillation frequency? What is the block's distance from equilibri..
A snowball rolls off a barn roof that slopes downward at the angle of 40 ^circ. The edge of the roof is 14.0 {rm m} above the ground, and the snowball has a speed of 7.00 {rm m/s} as it rolls off the roof. Ignore air resistance.
determine the angle below the horizontal that you must aim your spear gun in order to catch dinner. Suppose the spear gun barrel is 1.70 m above the water surface, the fish is 1.40m below surface, and the spear travels in a straight line all the w..
A charge of -3.2 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass, which has a radius of 0.099 m. The charges on the circle are -3.95 µC at the position due north and +5.45 µC at the position du..
A uniform soda can of mass 0.140 kg is 12.00 cm tall and filled with 1.31 kg of soda. After that small holes are drilled in the top and bottom (with negligible loss of metal) to drain the soda.
Oppositely charged parallel plates are separated by 4.52 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field between the plates?
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