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A charge of 8.00 mC is placed at each corner of a square 0.95 m on a side. Determine the magnitude and direction of the force on each charge.
Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 29.2 m. Assume the density of the water is 1.00 103 kg/m3 and the air above is at a pressure of 101.3 kPa. Pa (b) What force is exerted by the water on the window of an..
A 80 g, 37 cm long rod hangs vertically on a frictionless, horizontal axle passing by its center. A 15 g ball of clay traveling horizontally at 2.7 hits and sticks to the very bottom tip of rod.
An external force moves a 5.4-kg box at a constant speed up a frictionless ramp. The force acts in a direction parallel to the ramp. Calculate the work done on the box
A 2.0 kg box of running shoes slides on a horizontal frictionless table and collides with a 1.0 kg box of ballet slippers initially at rest on the edge of the table, at height h = 0.41 m. find their kinetic energy just before they strike the floor
The drawing shows a wire composed of three segments, AB, BC, and CD. There is a current of I = 2.0 A in the wire. Find the magnitude of the force that acts on each segment
A Ferris wheel rotating at 20 rad/s decelerates with a constantangular acceleration for -5.0 rad/s2. How many revolutions does it rotate before coming to rest
A spherical weather balloon is filled with hydrogen until its radius is 3.00 m. Its total mass including the instruments it carries is 15.0 kg. Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3. N
a 2.0 nc charge is placed on the x-axis at x=-3.0cm another 2.0nc charge is placed on the x-axis at x=3.0cm, What is the potential at the origin
A golf ball strikes a hard, smooth floor at an angle of θ = 31.6°, rebounds at the same angle. The mass of the ball is 0.043 kg, and its speed is 45m/s just before and after striking the floor. What is the magnitude of impulse applied to the golf bal..
it is believed that a large electric fish known as torpedo occidentalis uses electricity to shock its victims. a
mitch throws a 50 gram lump of clay with a speed of 20 m/s at a 500 gram target, find the coefficient of friction between the target and the surface
A bird sitting in a tree is travelling at 40 km/s relative to the faraway Sun. When the bird drops to the ground below, does it still go 40 km/s, or does this speed become zero.
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