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Water is flowing through a circular hole in a large, open tank at a rate of 126 ml / s. The hole is 3.75 meters below the surface of the water in the open tank. The area of the hole is 4 cm2 What is the weight of water that would leave the tank in 5.7 minutes?
Colonel John P. Stapp, USAF, participated in studying whether a jet pilot could survive emergency ejection. Determine the negative acceleration he experienced
Two girls decide to jump off a diving board. Katherine steps off the diving board. Anna runs straight off the diving board so that her initial velocity is solely horizontal. They both leave the diving board at the same time. Which one lands in the..
A woman holds a tube of lipstick 9 cm from a spherical mirror and notices that the image of the tube is upright and one fourth its normal size. Calculate the focal length of the mirror
An athlete swings a ball, connected to the end of a chain, in a horizontal circle. Which rate of rotation gives the greater speed for the ball
A Carnot engine operates between reservoirs at 550K and 300K, discarding 1500 J of heat in each cycle. determine the engine's efficiency
The Cosmoclock 21 Ferris wheel in Yokohama City, Japan, has a diameter of 100 m, Find the speed of the passengers when the Ferris wheel is rotating at this rate
A thermos contains 130 cm3 of coffee at 85° C. To cool the coffee, you drop two 13-g ice cubes into the thermos, What is the final temperature of the coffee
An unstable particle at rest breaks up into two fragments of unequal mass. The mass of the lighter fragment is equal to 2.60 10-28 kg, what is the speed of the heavier fragment
A 6.43 kg ball is thrown upward with an initial speed of 14.34 m/s. Ignore air resistance when answering the following questions. What is the ball's initial kinetic energy
A conducting sphere of radius 0.26 m has a potential of 240 V (with V = 0 at infinity). What is the charge density on its surface
A gamma-ray photon produces an electron-positron pair, each with a kinetic energy of 230keV. What was the energy of the photon
A solid bowling ball with a radius of 10.9 cm and a mass of 7.1 kg rolls along a bowling alley at a linear speed of 3.0 m/s. What is its translational kinetic energy
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