- #1
Ripple
- 2
- 0
Here are a couple questions I could use help on, please help.
1. What force must be applied to a small cylinder piston with a diameter of 0.32 m to lift a car weighting 12,000 N that is supported by the piston in a large cylinder that has a diameter of 1.4 m? Assume that there is an enclosed chamber in common between the two pistons and that the chamber is filled with hydraulic oil.m?
2. What is the height in cm of the column of mercury for a mercury barometer when the atmospheric pressure at a certain location is 1 atm? The denisty of mercury is 13.55g/cm^3.
3. A sperical-shaped hollow steel shell, with a radius of 2.5m, containing some instruments, is lowered by a cable into a lake. The shell with itss contents weighs 7.2 X 10^5 N on the dect of the ship from which it is being lowered. What is the tension in the cable when the sphere is completely immersed in the water?
4.During level airplaine flight at a constant velocity, the pressure created by air flowing over the curved upper surface of the wing compared to the pressure created by air flowing along the flat underside of the wing is?
6. Which phase (State) of matter has a fixed volume and takes the shape of its container?
a. plasma
b. gas
c. liquid
d. solid
If someone could please explain and answer these for me, i would be forever in their debt. :zzz: :zzz:
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Why be you, when you could be me! |
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1. What force must be applied to a small cylinder piston with a diameter of 0.32 m to lift a car weighting 12,000 N that is supported by the piston in a large cylinder that has a diameter of 1.4 m? Assume that there is an enclosed chamber in common between the two pistons and that the chamber is filled with hydraulic oil.m?
2. What is the height in cm of the column of mercury for a mercury barometer when the atmospheric pressure at a certain location is 1 atm? The denisty of mercury is 13.55g/cm^3.
3. A sperical-shaped hollow steel shell, with a radius of 2.5m, containing some instruments, is lowered by a cable into a lake. The shell with itss contents weighs 7.2 X 10^5 N on the dect of the ship from which it is being lowered. What is the tension in the cable when the sphere is completely immersed in the water?
4.During level airplaine flight at a constant velocity, the pressure created by air flowing over the curved upper surface of the wing compared to the pressure created by air flowing along the flat underside of the wing is?
6. Which phase (State) of matter has a fixed volume and takes the shape of its container?
a. plasma
b. gas
c. liquid
d. solid
If someone could please explain and answer these for me, i would be forever in their debt. :zzz: :zzz:
-------------------------------------------------------------------- |
Why be you, when you could be me! |
____________________________________________________________ |