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Two identical cylindrical vessels with their bases at the samelevel each contain a liquid of density 1.15 g/cm3. Thearea of each base is 3.98 cm2, but in one vessel theliquid height is 16.5 cm and in the other it is 20.3 cm. Find the work done by the gravitational force in equalizing the levels whenthe two vessels are connected.
A 53 kg woman and a 80 kg man stand 13 m apart on frictionless ice. If they hold on to two ends of a rope, and the man pulls on the rope so that he moves 3m, how far from the woman will he be now.
A point mass consisting of 26 charged particles travels at a velocity of magnitude 7.80 x 107 m/s through a uniform magnetic field of magnitude 10.2 T. Each charged particle has a charge of -12e and a mass of 3.60 x 10-29 kg. The angle between the..
A neutron star is the remnant left after certain supernovae (explosions of giant stars). Typically, neutron stars are about 20 in diameter and have around the same mass as our sun. What is a typical neutron star density in g/cm^3?
An ideal transformer has 890 turns in its primary coil and 150 turns in its secondary coil. What is the output voltage of the secondary coil
A child complains that her milk is too hot. It is indeed too hot at 90o C. what is the temperature of the mixture
What is the potential energy of a comet of mass m around a star of mass M if it is in elliptical orbit that has a pericenter at a distance R and an apocenter at 4R? What is the total energy of the comet?
a spaceship moving away from earth at 0.67 c fires a particle beam toward earth with speed 0.74 c relative to the ship.
A 5.1 kg bucket of water is raised from a well by a rope. find the force exerted by the rope on the bucket.
a wire 10 m long with a diameter of 1.0 mm has a resistance of 5.0 ?. the resistance of a second wire made of the same
a 2.50 kg firework shell is fired straight up from a mortar and reaches a height of 110 m. Neglecting air resistance, calculate the shell's velocity when it leaves the mortar
Express how unmet basic physiological needs of oxygen, nutrition, temperature, and humidity threaten clients' safety.
a current path shaped as shown in the figure produces a magnetic field at p the center of the arc. if the arc subtends
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