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A cylindrical tank having a radius 5 m and height H = 5 m is filled with water with the top end of the tank exposed tothe atmosphere. A circular drain with a radius 0.7 m is presently shut and at the bottom of this tank. If the drain is now opened, determine how fast the water will pour out of the drain. (a) 9.80 m/s (b) 9.85 m/s (c) 9.90 m/s (d) 9.95 m/s (e) 10.0 m/s (f) None of the above.
One gallon of gasoline releases approximately 1.0 108 J when it is "burned" (i.e., undergoes combustion) in a car engine. what is the mechanical work done by the engine
You are driving a car at the 25-mi/h speed limit when you observe the light at the intersection 68 m in front of you turn yellow. How fast were you going as you exited the intersection
On an icy road, a 1600 kg car moving at 53 km/h strikes a 470 kg truck moving in the same direction at 27km/h. Find the speed of the wreckage
A mass m hangs from a uniform spring of constant k. what is the period of oscillations in the system
An 80 kg skier starts down a flat slope that makes a 16 degree angle, with respect to the horizontal. at what speed is the skier moving at an altitude of 4100 ft
A construction hoist exerts an upward force of 500 N on an object with a mass of 50 kg. determine the power it expended to lift the object vertically for 10 seconds under these conditions
A sinusoidal wave travels along a stretched string. A particle on the string has a maximum velocity of 0.800m/s, What is the amplitude of the wave
When 4425 J of heat are added to a 0.16-m-long silver bar, What is the mass of the bar
A skier approaches the base of an icy, frictionless hill with a speed of 14.4m/s. Find the acceleration of this skier when she is going up the hill
A uniform ladder 5.0 m long rests against a frictionless, vertical wall with its lower end 3.0 m from the wall. The ladder weighs 145 N. The coefficient of static friction between the foot of the ladder and the ground is 0.40. A man weighing 760 N..
A particle of mass 4m is placed at a distance of 2.00 m from another particle of mass m. how far will that be orbiting around the earth
An object is viewed through a 35 cm thick tank of water (n=1.33) at an angle of 30 degrees from parallel to the tank surface. what is the apparent displacement the object from its actual location
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