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A hydraulic press consists of two vertical cylinders of circular cross-sectional areas 6cm2 and 120cm2 that are joined at the base. The press contains oil of relative density 0.93, and the friction between the pistons and the cylinder walls is negligible. Initially the pistons are at the same level
a) calculate the upward force on the larger piston due to a downward force of 30N on the smaller one.
b) Through what distance does the larger piston rise?
c)What is now the upward force on the larger piston due to a downward force of 30N on the smaller one?
A capacitor with its plates separated by paper stores 4.8 of charge when it is connected to a particular battery. An otherwise identical capacitor, How much charge does that capacitor store
An airplane with a mass of 2.6*10^6 kg. has the air flow past the lower surface of the wings at 100 m/s. If the wings have a surface area of 1200 m2, how fast should the air flow over the upper surface of the wing if the plane is to stay in the ai..
The total electric field consists of the vector sum of two parts. One part has a magnitude of E1 = 1300 N/C, Find the magnitude and direction of the total field
An asteroid is discovered heading straight toward Earth at 12km/s. An international team manages to attach a giant rocket engineto the asteroid. The rocket fires for 10 min, after which theasteroid is moving at 25 degrees to its original path at a..
Compute dissimilarity in blood pressure
A life preserver made of Styrofoam is designed to support a person weighing 575 N, Find the volume of Styrofoam required if the body's volume is 0.0503 m^3
The long straight wire carries a current of 3.0 A. A particle has a charge of +6.5x10-6 C and is moving parallel to the wire at a distance of 0.050 m. The speed of the particle is 280 m/s. Determine the magnitude and direction of the magnetic force o..
1 mole of cu at temp. 0 celsius is placed in thermal contact with a second mole of cu at 100 celsius. pressure in the
Water flowing through a garden hose of diameter2.70cm fills a20.0-L bucket in1.30min. what is the speed of the water leaving the nozzle
a 1.0-cm-diameter pipe widens to 2.0 cm then narrows to 0.5 cm. liquid flows through the first segment at a speed of
A bullet is shot out of a gun with a 61 cm barrel at a speed of 410 m/s into a block of wood. The bullet enters the wood 13 cm. Illustrate what force does the block exert on the bullet? What is the time it takes?
Suppose one gallon of gasoline produces 1.1 × 108 J of energy, and this energy is sufficient to operate a car for twenty miles. how many miles could the car go with that energy
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