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A piece of aluminum with a mass of 2.0 kg and density of 2700kg/m^3 is suspended from a string and then completely immersed in acontainer of water. The density of water is 1000 kg/m^3.
a) Determine the volume of the piece of aluminum
b) Determine the tension in the string after the metal is immersedin the water.
When one gallon of gasoline is burned in a car engine, 1.19 x 108 J of internal energy is released. how many miles can the car travel on one gallon of gas
Light of wavelength 640nm falls on two slits and produces an interference pattern in which the third-order bright red fringe is 48mm, obtain the separation of the two slits
She pumps the handle up and down, slowly lifting the car. What is the force exerted on the small piston during each downward stroke?
Illustrate what are the possible weaknesses in the Kimberely Process? Illustrate what role do you think the three sectors will have in addressing these weaknesses?
A suspension bridge is 60.0 m abovethe level base of a gorge. A stone is thrown or dropped from the bridge. At the location of the bridge, g has been measuredto be 9.83 m/s2.
A student sits on a rotating stool holding two weights, each of mass 3.00 kg. When his arms are extended horizontally, Find the new angular speed of the student
1. expalin why ionic compound are formed when a metal from the left side of the periodic table reacts with a nonmetal
A 2.05 cm tall object is placed 30.0 cm to the left of aconverging lens with a focal length f1 =18.9 cm. A diverging lens, with afocal length f2 = -41.5 cm, How tall is the final image of the object
a satellite has a mass of 5845 kg and is in a circular orbit 4.40x105 m above the surface of a planet. the period of
Mary runs off a diving board with a velocity of 1.7 m/s in the horizontal direction. If the water surface is 2 meters below the board: how long will it take for her to hit the water
a helium nucleus has radius rhe 1.9 fm mass m 6.6 times 10-27 kg and charge 2e. a gold nucleus has charge 87e and
A hiker weighing 600N carries a 2.0 kg knapsack up atrail. After 30 minutes, the hiker is 300m higher than thestarting point. how much total work did the hiker do
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