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A U-tube contains liquid of unknown density. An oil of density 787kg/m3 is poured into one arm of the tube until the oilcolumn is 11 cm high. The oil-air interface is then 4 cm above theliquid level in the other arm of the U-tube. Find the density of the liquid.
An aluminum wire with a cross-sectional area of 3.9 x 10^(-6) m^2 carries a current of 1.9 A. Find the drift speed of the electrons in the wire
question1the pattern if intensity i versus position x shown below is measured on a wall 20nbspmeters from a set of n
A point mass of m1 = 2.3 kg is placed at the origin. Masses m2 = 5.4 kg and m3 = 7.6 kg are placed at 3.5 m and -5.8 m on the x-axis, respectively. Find out the location on the x-axis of the center of mass.
A 500-turn circular coil with an area of 0.050 m2 is mounted on a rotating frame, What is the instantaneous emf in the coil at the moment that the normal to its plane is parallel to the field
what is the electric force between the proton and electron inside of a hydrogen atom? What must the speed of the electron be? Radius=0.47 x 10^-9.
If the airplane somehow continues to fly as if nothing had happened, where is engine relative to the airplane at the moment the engine hits ground.
Find out the tension in the two strings. string between m1 and m2 2 N string between m2 and the 3.00 kg mass
A horizontal aluminum rod 4cm in diameter projects 5.2 cm froma wall. A 1700kg object is suspended from the end of the rod. Find the vertical deflection on the end of the rod
A cylindrical log of uniform density and radius R = 30.0 cm floats so that the vertical distance from the water line to the top of the log is d = 12.0 cm
A 1 cm3 air bubble at a depth of 209 meters and at a temperature of 4 oC rises to the surface of the lake where the temperature is 18 oC, what is its new volume
A proton and an alpha particle after being accelerated through same potential difference enter a uniform magnetic field the direction of which is perpendicular to their velocities
Two indentical spaceships are travelling in the same direction. an observer on earth measure the first to have a speed of 0.80c, determine the speed of second spaceship
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