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A firecracker is tossed straight up into the air. It explodes into three pieces of identical mass just as it reaches the highest point. Two pieces move off at 130 meter per second at right angles to each other. Evaluate how fast is the third piece moving?
A long, narrow rectangular loop of wire is moving toward the bottom of the page by a speed of 0.019 m/s. The loop is leaving a region in which a 2.1 T magnetic field exists; the magnetic field outside this region is zero.
A 1600-kg car starts from rest to reach 60.0 miles/h in 6.50 s. What is the engine's power output, How much work is done by the engine during the acceleration
A car speeds up as it turns from travelling due south to dueeast. When exactly halfway around the curve, the car's accelerationis 3.50 m/s 2, What is the radial component of the acceleration at that point
A 56.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.24 102 m/s from the top of a cliff 146 m above level ground, What is the initial total mechanical energy of the projectile
two particles with Q1=50uc and Q2=84uc are initially separated by a distance of 2.3m, what is the change in electric potential energy
A gasoline engine fuel burns at a temp of 500 degrees Celsius. Its radiator cools to 70 degrees celsius. What is the engines Carnot efficiency
A professor's office door is 0.96m wide, 2.2mhigh, 4.0cm thick; has a mass of 26kg , and pivots on frictionless hinges. what is its angular acceleration immediately afterward
If the seat of the chair is 30 cm offthe floor, how far does the Earth move while you are falling
Two long uniform lines of charge are parallel and are separated by 0.350 meter. Obtain what magnitude of force does one line of charge exert on a 5.20 x 10-2 meter section of the other line of charge
a spring is hanging down from the ceiling has an object of mass m is attached to the free end of the spring. the object
Two parallel wires with centers separated by 8.7mm each carry 11A in the opposite direction. Find the magnitude of the force per unit length on each wire
A uniform diving board, 12m long and 20kg mass is placed on a platform. How far can a 60kg person walk down the board from the edge of the platform without board tipping over.
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