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The drawing shows four point charges. The value of q is 4.0 ?C, and the distance d is 0.75 m. Discover the total potential at the location P. Suppose that the potential of a point charge is zero at infinity.
A 620g object traveling at 2.1m/s collides head-on with a 320g object traveling in the opposite direction at 3.8m/s. what is the change in the kinetic energy of the 620g object
you are swinging your younger sister in a horizontal circle of radius 0.80 m. her mass is 21 kg and you arrange it so
250 cm3 of hot tea at 89degc are poured into a very thin paper cup with 10 g of crushed ice at 0degc. calculate the
A 20.00 kg child is on a swing that hangs from 3 m long chains. What is her maximum speed if she swings out to a 45.0 o angle.
A group of particles is traveling in a magnetic field of unknown magnitude and direction. What is the direction of this the magnetic force
A mass of 0.79 kg, attached to a spring by a spring constant of 67 N/m, is set into simple harmonic motion. What is the magnitude of the acceleration of the mass when at its maximum displacement of 0.51 m from the equilibrium position?
a 50.0-m length of coaxial cable has an inner conductor that has a diameter of 2.58 mm and carries a charge of 8.10
In Anchorage, collisions of a vehicle with a moose are so common that they are referred to with the abbreviation MVC. What percent of the original kinetic energy is lost in the collision to other forms of energy
Two boys are sliding toward each other on a frictionless, ice-covered parking lot. Jacob, mass 45 kg, is gliding to the right at 7.67 m/s, What is their velocity immediately there after
What is the approximate mass of an object whose weight equals the force in part (b).
A pendulum is 1.20 metres long. What is the speed of the bob when it passes by its equalibrium position if it is pulled aside until it makes an angle of 25 degrees to vertical.
A 110 g copper calorimeter cup contains 190 cm3 of water and 45 g of ice, all in thermal equilibrium. find the mass of water before the hot iron is put into the cup
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