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A child is twirling a 0.0224-kg ball on a string in a horizontal circle whose radius is 0.104 m. The ball travels once around the circle in 0.350 s.
(a) Determine the centripetal force acting on the ball.
(b) If the speed is doubled, by what factor does the centripetal force increase?
A relatively small puncture is made at the base of a large, open-topped water reservoir that sits on the ground, determine the water level in the tank
A 860 ? resistor is connected to a variable-voltage power supply. What current flows in the resistor when the voltage is 15 V?
Speedboat A negotiates a curve whose radius is 115 m. Speedboat B negotiates a curve whose radius is 194 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
Important information about Initial kinetic energy of the object Point A is situated at the bottom of a rough plane which is inclined at 45 degrees to the horizontal. A body of mass 0.5 kg is projected from A along and up the line of greatest slop..
define the magnitude of the acceleration of the block. What is the electric ?eld strength.
A simple pendulum on the surface of Earth is found to undergo 13.0 complete small-amplitude oscillations in 7.05 s
Estimate the time constant in a RC circuit.
A hoop and a disk, both of 0.48- m radius and 3.0- kg mass, are released from the top of an inclined plane 3.3 m high and 8.3 m long. What is the speed of the hoop
A syringe with a barrell with a diameter of 0.20 m is filled with water. What is the speed of the jet of water out of the syringe
Two parallel plates, each of area 8.17 cm2, are separated by 6.20 mm, Calculate the amount of the electric charge stored on each plate
Light from an argon laser strikes a diffraction grating that has 5345 grooves per centimeter. Determine the wavelength of the laser light
An elevator is able to raise 9,800 N to a height of 37 m in 12 s, What is the elevator's power output and How much work does the elevator do
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