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1) The water in the plumbing in a house is at a gauge pressure of 370,000 Pa. What force does this cause on the top of the tank inside a water heater...

Can you please help me with Physics 102 Homework CH 4

1) The water in the plumbing in a house is at a gauge pressure of 370,000 Pa. What force does this cause on the top of the tank inside a water heater if the area of the top is 0.6 m 2 ? (Ignore atmospheric pressure.) 3) A small statue is recovered in an archaeological dig. Its weight is measured to be 5.3 lb and its volume 0.07 ft 3 . (a) What is the statue's weight density? (b) What substance is it, most likely? silver brass diamond juniper wood ebony wood 4) A certain part of an aircraft engine has a volume of 1.2 ft 3 . (a) Find the weight of the piece when it is made of nickel . (b) If the same piece is made of aluminum, what is its weight? Determine how much weight is saved by using aluminum instead of nickel . 5) The depth of the Paci±c Ocean in the Mariana Trench is 36,198 ft. What is the gauge pressure at this depth? 6) A storage tank 29 m high is ±lled with pure water . (Assume the tank is open and exposed to the atmosphere at the top.) (a) Find the gauge pressure at the bottom of the tank. (b) Calculate the magnitude of the force produced by the ²uid that acts on a square access hatch at the bottom of the tank that measures 0.8 m by 0.8 m. 8) A juniper-wood plank measuring 0.34 ft by 1 ft by 13 ft is
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totally submerged in water. (a) What is its weight? (b) What is the buoyant force acting on it? (c) What is the size and the direction of the net force on it? size direction ---Select--- upward downward 9) A rectangular block of ice with dimensions 2 m by 3 m by 0.2 m Foats on water. A person weighing 810 N wants to stand on the ice. Would the ice sink below the surface of the water? Yes No 10) The wing of an airplane has an average cross-sectional area of 13 m 2 and experiences a lift force of 84,000 N. What is the average di±erence in the air pressure (in N/m^2) between the top and bottom of the wing? 11) Describe the four phases of matter. Compare their external, observable properties. Solids: (Select all that apply.) are generally good conductors of electricity and interact strongly with magnetic ²elds can be compressed or squeezed into a smaller volume readily Fow readily, conforming to the shape of their container have a well-de²ned boundary or surface are rigid, and generally retain their shape unless distorted by a force Liquids: (Select all that apply.) are generally good conductors of electricity and interact strongly with magnetic ²elds can be compressed or squeezed into a smaller volume readily Fow readily, conforming to the shape of their container have a well-de²ned boundary or surface are rigid, and generally retain their shape unless distorted by a force
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Top Answer

1a) Force=PA = 370000*0.6=... View the full answer

1 comment
  • Thanks what about the rest?
    • jay144
    • Apr 16, 2016 at 2:45am

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