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An explosion breaks an object into two pieces,one of which has 1.5 times the mass of the other. If 7500 J werereleased in the explosion, how much kinetic energy did each piece acquire?
A ball of mass 0.60 kg is fired with velocity 140 m/s into the barrel of a spring gun of mass 2.5 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring.
A bar of lead (bar A) is in thermal contact with a bar of silver (bar B) of the same length and area, Find the temperature at the junction when the energy flow reaches a steady state
A solenoid is to have an inductance of 0.295 mH, a cross-sectional area of 5.91 x 10-4 m2, and a length of 34.9 cm. How many turns per unit length should it have
A factory worker pushes a 25.0 kgcrate a distance of 4.6 m along a level floor at constant velocityby pushing horizontally on it. What is the total work done on the crate
Two small plastic balls hang from threads of negligible mass. Each ball has a mass of 0.57 g and a charge of magnitude q. Find the magnitude of the electric force acting on the ball
A cheetah standing by a tree accelerated directly east at a constant rate for one-half minute. He then continued directly east at a constant speed for two minutes. During the next threefourths minute he slowed at a constant rate and came to a stop..
Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.19 multiply.gif 10-3 g. Find the temperature inside the box
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 50.0 deg. Find the angle the resultant force makes with the rope of dog A
One mole of a monatomic gas at 400 K is reversibly taken to half of its original volume by an isobaric process. How much work is done by the gas?
Capacitors C1 = 3450 nF and C2 = 700 nF are initially connected in parallel and hold a combined charge of Qtoti = 783 nC. Find the total charge Qtotf and total energy stored in the final state
Two springs with spring constants k1 and k2 are put togetherend-to-end. Let x1 be the amount by whichthe rst spring is stretched relative to its equilibrium length, andsimilarly for x2.
A model airplane of mass 0.790 kg is flying at constant speed in a horizontal circle at one end of a 26.0 m cord and at a height of 11.0 m. What is the acceleration of the plane
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