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Q. A cylindrical container 1.60 {rm m} tall contains mercury to a certain depth, d. The rest of the cylinder is filled with water.
If the pressure at the bottom of cylinder is two atmospheres, what is the depth d?
Q. Throughout a workout, the football players at State U ran up the stadium stairs in 55s. The stairs are 160 m long and inclined at an angle of 30°. If a typical player has a mass of 105 kg, estimate the average power output on the way up. Overlook friction and air resistance.
Charge of uniform density (80 nC/m^3) is distributed throughout a hollow cylinder region formed by two coaxial cylindrical surfaces of radii 1.0 mm and 3.0 mm. Determine the magnitude of the electric field at a point which is 2.0 mm from the symmetry..
Describe briefly a current health problem. A father racing his son has half the kinetic energy of the son, who has one-third the mass of the father. The father speeds up by 2.5 m/s and then has the same kinetic energy as the son.
Suppose that all movement occurs in a straight line up and down along the y axis. Find out the muzzle velocity of the ball (i.e., the velocity of the ball at spring's equilibrium position).
Find the eight ball's speed after the colision. Parallel rays of green mercury light with a wavelength of 546 nm pass through a slit with a width of 0.437 mm. What is distance from the central maximum to the first minimum on a screen 1.75 mm away f..
The radius of Venus's orbit is 0.72 times that of Earth's orbit. How much stronger is the Sun's gravitational field at Venus than at the earth.
Two charged spheres are 8.45cm apart. They are moved, and the force on each of them is found to have been tripled. How far apart are they now.
What force does the water exert on the man. explain how far does the tongue reach.
find out the magnitude of an acceleration
Cold fusion theory.
He is sitting on a set of bathroom scales. He notes that scales show four times his normal weight. What is the radius of the loop, in meters.
A 3.06 kg block slides down a frictionless plane inclined 18.6' to the horizontal. If length of the plane's surface is 1.43 m, how much work is done, and by what force.
A 9300 kg boxcar traveling at 20m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 10 m/s. What is the mass of the second car.
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