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1. The fact that an increase of pressure on an enclosed fluid is transmitted uniformly throughout the fluid is------------- law.
2. A hydraulic jack is used to lift a load of weight 1000N. The load-bearing cylinder has a radius of 4cm, and the other piston has a radius of 1cm. what force must be exerted on the smaller piston to support the load? show calculation.
3. If the atmospheric pressure is 1.1Af-10 raise to the power 5 Pa, the corresponding downward force on the top of a horizontal square areas 6cm on each side is approximately. show calculation.
4. A gas initially is at a pressure of 100Pa. If it's volume is halved while the absolute temperature is kept constant the new pressure will be --------------kpa. Explain your answer by using the appropriate law (formula).
5. A gas originally occupies a volume of 0.5m cube at a pressure of 100kpa. It is slowly allowed to expand until the volume is 2.5m cube. Assuming the temperature is kept constant, the final pressure will be: show calculation.
The unstable isotope 234Th decays by beta emission with a half-life of 24.5 days. what is the decay rate after 37 days
question 1an infinitely long uniformly charged cylinder of radius r is shown.ausing symmetry arguments sketch the shape
A cylindrical copper rod has resistance of 0.3 ohm. It is reformed to 3.8 timesm its original length with no change of volume. What is its new resistance in ohms?
An object has an equation of motion given by x = -2t^2 + 2t - 5. What is the displacement of the particle from t = 1s to t = 3s? What is the average velocity over that time range
A simple pendulum has a mass of 0.650 kg and a length of 2.00 m. It is displaced through an angle of 7.0° and then released. What is the maximum speed of the bob
a 2.60-g lead bullet at 32.0degc is fired at a speed of 210 ms into a large block of ice at 0degc in which it becomes
tarzan swings on a vine from a cliff to rescue jane who is standing on the ground surrounded by snakes. his plan is to
drop a rock into a well. You hear the splash 2.40 s after you release the rock from rest. The speed of sound in air at the ambient temperature is 336 m/s. How far below the top of the well is the surface of the water?
Consider a neutron star whose mass is twice the mass of the Sun and whose radius is 14.1 km. What is the radius of the geostationary orbit for this neutron star
the electric potential at a position located a distance of 18.9 mm from a positive point charge of 8.70times10-9c and
A cat leaps onto a counter 93 cm off the floor, starting 65 cm from the edge of the counter. What was its initial speed
At the instant a traffic light turns green a car that has been waiting at the intersection starts ahead with a constant acceleration of 2.00 m/s2. Determine the speed the car when it passes the truck
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