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The gravitational attraction between two objects varies directly as the product of their masses and inversely as the square of the distance between them. If the force of attraction between two spheres, each with a mass of 1 g that are 1centimeter apart is 6.66 x 10-8 dynes. Determine the force of attraction between two spheres with masses of 2 gram and 4 gram that are 4 centimeter apart.
Two parallel plates of 0.5m high and 0.2m wide are a distance 0.25m apart. What is the Capacitance of the system. compute the Electric field
A rock is suspended by a light string. When the rock is in air, the tension in the string is 39.1 N. What is the density of the unknown liquid
Mary and her younger brother Alex decide to ride the carousel at the State Fair. What is Mary's angular speed %u03C9M and tangential speed vM
A cigarette lighter in a car is a resistor that, when activated, is connected across the 12-V battery. Suppose a lighter dissipates 32 W of power. find the resistance of the lighter
Two loudspeaker, 4.0 m apart and facing each other, play identical sounds of the same frequency. You stand halfway between them, where there is a max. of sound intensity. moving from this point toward one of the speakers, you encounter a min. of s..
q1. a 2.2 kg ball is shot straight upward into the air with an initial speed of 7.8 ms. the ball is fired from the
Suppose you have a spherical balloon filled with air at room temperature and 1.0 atm pressure; its radius is 12cm . You take the balloon in an airplane, where the pressure is 0.90 atm. If the temperature is unchanged, what's the balloon's new radius?..
Three long, straight, parallel wires all lie in the yz plane and each carries a current of 20 A in the positive z direction. The two outer wires are each 4.0 cm from the center wire. What is the magnitude of the magnetic force on a 50-cm length of ei..
A simple pendulum has a mass of 0.650 kg and a length of 2.00 m. It is displaced through an angle of 7.0° and then released. What is the maximum speed of the bob
A wheel turns 5 revolutions at 8 rad/s. Find the tangential velocity of a point on the rim of the wheel if the wheel has a radius of 0.50 meter
A friend suggests that everone in the world simultaneously jumping off a high platform could cause an earthquake. "Yeahright." you say. Assume all 6.5 billion inhabitants(average mass 70kg each) jump together off a 4 m high platform. how much woul..
A thin glass rod forms a semicircle of radius r = 3.03 cm. Charge is uniformly distributed along the rod, with +q = 1.05 pC in the upper half and -q = -1.05 pC in the lower half
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