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Three point charges lie along a straight line, where q1= 6.00µC, q2 = 1.50µC, and q3 = -2.00µC. The separation distances are d1 = 3.00 cm and d2 = 2.00 cm. Calculate the magnitude and direction of the net electric force on (a) q1, (b) q2, and (c) q3. D1 lies between q1 and q2.
A 38.0-kg child swings in a swing supported by two chains, each 2.90 m long. The tension in each chain at the lowest point is 418 N. Find the child's speed at the lowest point
A baseball thrown at a angle of 40.0 degrees above the horizontal at 15.0 m/s from the top of a vertical cliff strikes the ground 42.5 m from the base of the cliff. Ignore air resistance. Find the height of the cliff.
Two 120kg lead spheres are suspended from 170m -long massless cables. By what distance do the two spheres move closer
design of open channels - to protect cities from flooding during heavy rains open channels are sometimes constructed to
One mole of a gas expands from a volume of 5 liters and a temperature of 273 K to a volume of 12 liters and a temperature of 300 K. What is the work done by the gas on the environment?
A point charge 8.00 nC is at the center of a cube with sides of length 0.200m. what is the electric flux through: (a) the surface of the cube (b) on of the six faces of the cube?
Determine the rate at which the electric field changes between the round plates of a capacitor, 5.6 cm in diameter
question a bottle has a mass of 35.00 g when empty and 98.40 g when filled with water. when filled with another fluid
How long does it take the Sun to melt a block of ice at 0?C with a flat horizontal area 1.0 m2 and thickness 1.3cm
A 3.0 m long rigid beam with a mass of 120 kg is supported at each end. An 85 kg student stands 2.0 m from support 1. Explain by how much upward force does each support exert on the beam?
A 6.6-kg rock and a 4.7 × 10-4-kg pebble are held near the surface of the earth. Determine the magnitude of the gravitational force exerted on each by the earth
An artillery shell of mass 10.00 kg, lying at rest on the ground, accidentally detonates, exploding into three pieces of shrapnel. Calculate the speed of the third piece of shrapnel
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