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A 2 kg ball, moving to the right at a velocity of 2 m/s on a frictionless table, has an elastic head-on collision with a stationary 5 kg ball. What is the total kinetic energy before the collision? What is the total kinetic energy after the collision?
In a transformer the energy is conveyed from primary to secondary by which means?
A 250 g Teddy Bear and a 5 kg baby stroller are nudged off a window sill and fall 5 meters to the ground. Determine the speeds and kinetic energies of both objects
What is the magnitude of the acceleration of the boxes? What is the tension in the cord connecting the boxes? What is the speed of each of the boxes 2.50 s after the system is released from rest?
A block of ice of mass 0.8 kg and initial temperature T = 0 C is placed in a sealed insulated container full of Helium gas, What is the mass of the liquid water
A cylinder in a car engine takes Vi = 4.50 10-2 m3 of air into the chamber at 30° C and at atmospheric pressure. What is the new temperature of the air
Indiana Jones is pushing back a 285 kg box which slides 4.3 m down a 29° incline and kept from accelerating. Calculate the force exerted by jones
The electric potential immediately outside a charged conducting sphere is 180 V, and 10.0 cm farther from the center of the sphere the potential is 130 V
1 from the top of a 40.0m high cliff two rocks are simultaneously thrown. one is thrown upwards at 20.0ms the other is
A ship, carrying fresh water to a desert island in theCaribbean, has a horizontal cross-sectional area of2710 m at the waterline. How much water was delivered
Two freight cars, each with a mass of 2.9 x 10^5 kg, collide and stick together. One was initially moving at 2.80 m/s and the other was at rest. What is the final speed.
Calculate the work done on a gas, the change in internal energy of the gas, the heat added to the gas, and the change in entropy of the gas when 1.12 moles of oxygen
When a 60 N stone is attached to a spring scale and is submerged in water, the spring scale reads 35 N. What is the density of the stone
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