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A tall Cylinder contains 25 cm of water. Oil is carefully poured into the cylinder, where it floats on top of the water, until the total liquid depth is 40 cm. What is the gauge pressure at the bottom of the cylinder? Suppose that the density of the oil is 900 kg/m^3.
A 76 kg jumper lands stiff-legged on the floor and changes his velocity from -8 m/s to zero in 0.3 seconds. what happens to the ground reaction force
A dentist's drill starts from rest. After 3.30 s of constant angular acceleration it turns at a rate of 2.0 x 10^4 rev/min. Find the drill's angular acceleration
A heat engine absorbs 250 kcal of heat from a high temperature reservoir and exhaust 175 kcal to a low temp recover. Decide engine's thermal efficiency from the efficiency of an ideal gas heat engine,
A boy stands on a diving board and tosses a stone into a swimming pool. how much time elapses between when the stone is thrown and when it strikes the bottom of the pool
A 0.18kg rubber ball is dropped from a height of 1.2m above the floor and it bounces back to a height of 0.70m. What is the speed of the ball just as it leaves the ground
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 15.0 cm, giving it a charge of -16.6 µC. Find the magnitude of the electric field just inside the paint layer
A 100 kg block is pulled at a constant speed of 7.4 m/s across a horizontal floor by an applied force of 132 N directed 37° above the horizontal. find the rate at which the force does work on the block
A scalloped hammerhead shark swims at a steady speed of 1.8 m/s with its 80 cm wide head perpendicular to the earth's 56 µT magnetic field. Obtain the magnitude of the emf induced between the two sides
a 12 kg ball is dropped from rest at a point 5m above the floor and bounces back with a speed of 6 ms. what impulse is
A pressure drop of 100 kPa is desired in 80 m of smooth pipe transporting 20-C water at a flow rate of 0.0016 m3=s. What diameter pipe should be used? Because the Moody diagram requires a trial-and-error solution, one of the alternate equations is..
to examine a particular blood sample in biology lab a student uses a compound microscope set to have a magnification of
A barrel will rupture when the gauge pressure within it reaches 100 kPa. How high can the water be in the pipe before the barrel ruptures
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