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Mercury is poured into a U-tube as shown in Figure (a). The left arm of the tube has cross-sectional area A1 of 11.0 cm2, and the right arm has a cross-sectional area A2 of 4.60 cm2. Three hundred grams of water are then poured into the right arm as shown in Figure (b). (a) Determine the length of the water column in the right arm of the U-tube. cm (b) Given that the density of mercury is 13.6 g/cm3, what distance h does the mercury rise in the left arm? cm
A ray of light, traveling in the air, strikes the surface of mineral oil at an angle of 27.9 degrees with the normal to the surface. What is the angle of refraction
A parallel plate capacitor is made with plates of 10 cm on a side, situated 0.1mm apart. what is the energy stored on the capacitor
q1. a 484g oscillator has a speed of 121 cms when its displacement is 2.10 cm and 56.0 cms when its displacement is
A metal bar, pivoted at one end, oscillates freely in the absence of a magnetic field. But, when it oscillates between the poles of a magnet, its oscillations are quickly damped. Why? (Such magnetic damping is used in a number of practical devices..
An object with a mass of m = 4.6 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.265 m, determine the velocity when it hits the floor
Two 10-cm-diameter charged rings face each other, 16.0 cm apart. What is the electric field strength at the center of the left ring
A 1890 kg truck traveling north at 45 km/h turns east and accelerates to 51 km/h. What is the change in the truck's kinetic energy
Consider two simple pendulums p and q of equal length l and mass m1 and m2 respectively. assume the bobs of the pendulum are connected to each other by a weightless spring of force constant k such that in the equilibrium position,the spring is uns..
A car travels a straight road at 120 km/h for 30 min. then at 90 km/h for 10 min. Find the average velocity and average speed for the entire trip
A sled and rider with a combined mass of 50 kg are at the top of a hill 20 m above the level of ground below. After the push, what is the total mechanical energy of the sled and rider at the top of the hill
A steel section of the Alaskan pipeline had a length of 55.5 m and a temperature of 19.0 deg C when it was installed. What is its change in length
A 200 km long high-voltage transmission line 2 cm in diameter carries a steady current of 1050 A. If the conductor is copper with a free charge density of 8.8 x10^28 electrons per cubic meter, how various years does it take one electron to travel ..
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