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Q. A cylindrical container 1.1 tall contains mercury to a certain depth. The rest of the cylinder is filled with water.If the pressure at the bottom of the cylinder is two atmospheres, what is the depth?
Q. Two people who wear glasses are camping. One of them is nearsighted and the other is farsighted. Which person's glasses will be useful in starting a fire with the sun's rays?
Five people are playing tug-of-war. Anders and alyson pull to the right with 44 N and 34 N, correspondingly. Calid and Marisol pull to the left with 55 N and 35 N, respectively. With what force and in what direction does Benito pul of the game is tie..
Find density of the object
A flight attendant pulls her 64 N flight bag a distance of 370 m along a level airport floor at a constant velocity. The force she exerts is 45 N at an angle of 51° above the horizontal.
Two speakers, 6.00 m apart, are driven by the same audio oscillator so that each one produces a sound consisting of two distinct frequencies, 1000 Hz and 1360 Hz. The speed of sound in the room is 350 m/s.
A 0.12-kg ball is placed in a shallow wedge with an opening angle of 120°, as shown in the figure. For each contact point between the wedge and the ball, determine the force exerted on the ball. Assume the system is frictionless. Find contact force o..
An isolated copper sphere of radius 4.85cm, at first uncharged, is illuminated by ultraviolet light of wavelength 244nm. The work function for copper is 4.70 eV. What charge does the photoelectric effect induce on sphere.
Find out the angular velocity
A cardiac pacemaker can be affected by the static magnetic field as small as 1.7 mT. How close can a pacemaker wearer come to a long, straight wire carrying 19 A.
A 0.230- coffee cup at 19 is filled with 0.240 of brewed coffee at 97. The cup and the coffee come to thermal equilibrium at 79.If no heat is lost to the environment, what is specific heat of the cup material.
Agree on the mass of the earth knowing that the mean radius of the moon's orbit about the earth is 248,910 mi and that the moon requires 28.32 days to complete one full revolution about earth.
The velocity of the wave traveling on a string is higher if you increase the length of the string (keeping the kind of string, and the tension of the string, unchanged)
An airplane with a wing span of L = 27m flies horizontally at a location where the vertical component of the Earth's magnetic field is B = 6.0 x10 -5 T.
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