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Playing horseshoes the object is to throw a 1kg horse shoe a horizontal distance of 10.5 m to a vertical stake.
a) how fast must a horseshoe be thrown horizontally from a height of 1meter to land at the stake ?
b) at what angle does the shoe impact the ground if thrown with the velocity found above? if you found no velocity assume vxi= 20m/s?
A 37.0-kg child swings in a swing supported by two chains, each 3.06 m long. The tension in each chain at the lowest point is 436 N. Find the child's speed at the lowest point
A face appears in a convex mirror; face is 75% its normal size and appears to be 24cm behind the mirror. How far was the face standing from the mirror
A copper rod, an aluminum rod, and a brass rod, each of 6.00 m length and 1.00 cm diameter, are placed end to end with the aluminum rod between the other two. What is the total entropy change of the water
A proton is initially at rest at a point where the potential is 459 V. Sometime later the proton is at a point where the potential is 218 V. If no force other than an electrostatic force acts on the proton, what is its final kinetic energy.
Two thermal reservoirs are connected by a solid copper bar. The bar is 3 m long, and the temperatures of the reservoirs are 63.0°C and 32.0°C. What is the rate of heat flow through the bar
A gun shoots bullets that leave the muzzle with a speed of 338 m/s. If a bullet is to hit a target 104-m away at the level of the muzzle, the gun should be aimed at a point above the goal.
A prescription for a corrective lens calls for +1.50D. The lensmaker grinds the lens from a "blank" with n = 1.56, What should be the radius of curvature of the other surface
An aircraft with a mass of 996 kg accelerates from 0 to 87 m/s in 6.2 seconds, at which time the aircraft launches. What is the kinetic energy of the aircraft when the aircraft launches
An ideal gas at 26.9°C and a pressure 1.60 105 Pa is in a container having a volume of 1.00 L. Find the number of moles of gas
assess the benefits brought about by the application of lean techniques at wiremold. explain your answer by describing
The period of oscillation of an object in a frictionless tunnel running through the Earth is 84.3 min. What is the time of oscillation of an object in a similar tunnel on the Moon.
Calculate the kinetic energy acquired by a 11 kg nail when it is struck by the 530 kg hammer moving with an initial speed of 4.4m/s.
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