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Three equal point charges, each with charge 1.65 , are placed at the vertices of an equilateral triangle whose sides are of length 0.500 . What is the electric potential energy of the system? (Take as zero the potential energy of the three charges when they are infinitely far apart.)
100g of ice at -10C is placed into 100g of warm water in an insulated container. Calculate the mass of the ice that remains when equilibrium is achieved
A Carnot engine has an efficiency of 0.361, and the temperature of its cold reservoir is 406 K. (a) Determine the temperature of its hot reservoir. (b) If 5950 J of heat is rejected to the cold reservoir, what amount of heat is put into the engine..
A 500 g cart is released from rest 1.00 m from the bottom of a frictionless, 30.0 degree ramp. how far does it roll back up the ramp
Conservation of energy tells us that energy cannot be created or destroyed. Clearly, energy is required for radioactivity to occur. Where is this energy coming from?
An 1150-kg car pulls a 450-kg trailer. The car exerts a horizontal force of 3.8 x 103 N against the ground in order to accelerate. What force does the car exert on the trailer
A 4.7- kg box of books is pulled up a 4.16- m-long inclined plank to a height of 1.8 m. What percent of the work is lost to friction
A particular atomic energy state is characterized by a principle quantum number n = 4. How many orbital subshells are possible
A 7.4- g piece of silver undergoes isochoric heating, By how many joules does the internal energy change
A piano wire with mass 3.45g and length 85.0cm is stretched with a tension of 31.0N. Calculate the average power carried by the wave
A piece of wire carries a current I along the x-axis and sits in a magnetic field with field lines in the y-direction. What is the direction of the Lorentz Law
A train moving with constant velocity travels 180 m north in 14 s and an undetermined distance to the west. How far west has the train traveled in this time
A particle of mass M decays into two identical particles each of mass m, where m = 0.4M. Prior to the decay, the particle of mass M has a total energy of 4 Mc2 in the laboratory reference frame. The velocities of decay product are along the directi..
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