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A block of mass 3 kg is moved up an incline that makes an angle of 37 with the horizontal under the action of a constant horizontal force of 40 N. The coffcient of kinetic friction between the block and the incline is 0.1. The block is initially at rest. What is the kinetic energy of the block after it has been displaced 2 m along the incline?
A girl delivering newspapers covers her route by traveling6.00blocks west,4.00blocks north, and then3.00blocks east. What is the total distance she travels
Three forces act on an object moving with constant velocity. One force of 40.0 N due west, the other force is 25 N due south. What is the magnitude and direction of the third force
A hole in an aluminum plate has a diameter of 1.179 at 24.00. What is the diameter of the hole at 199.0
Suppose in the drawing that I1 = I2 = 13.6 A and that the separation between the wires is 0.0244 m. What is the magnitude of the external field
A piece of balsa wood of 0.3 g/cm3 is released after being completely submerged underwater. What is the magnitude of the initial acceleration of the wood
A cylinderical water tank of radius 10ft and height 30ft is half filled with water. How much work is essential to pump all of the water out through a hole in the top of tank.
A current of 10.0 mA is maintained in a single circular loop with a circumferenceof 1.20 m. A magnetic field of 0.880 T is directed parallel to the plane of the loop. What is the magnitude of the torque exerted by the magnetic field on the loop?
A sled weighs 100 N. It is held in place on a frictionless 20 degree slope by a rope attached to a stake at the top of the slope; What is the normal force acting on the sled
The pressure in the fluid at the distance from the axis of rotation is. You may ignore the variation in pressure with depth; suppose that it is much smaller than the variation in pressure with radius.
A horizontal rope is tied from a house to a pulley and down to a paint bucket filled with sand. what is the mass of the bucket of sand
Black smokers are hot volcanic vents that emit smoke deep in the ocean floor. Many of them teem with exotic creatures, and some biologists think that life on earth may have begun around such vents.
As long as you don't stretch it too much, the force exerted by the spring obeys Hooke's Law. The further you stretch the spring, the harder it pulls back on you. How far does the spring stretch from equilibrium
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