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A vibrating tuning fork of freq 256 Hz is held over the top of a vertical tube full of water. The water is allowed to flow out slowly from the tube. A loud sound is heard when the air column in the tube is 33 cm. Compute the speed of sound in air.
The following charges are located inside a submarine: 4.00, -8.00, 25.0, and -60.0. find the net electric flux through the hull of the submarine
An automobile initially moving 72. km/hr jams the brakes and skids to a stop in a distance of 24. What is the coefficient of friction for dry weather
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 14.0cm , giving it a charge of -11.0μC. Find the electric field just outside the paint layer
What is the velocity of q_{2} when the balls are 0.450 m apart. what is the speed that the bar falls.
A fisherman is reeling in afish. In 9.0 s he winds 3.5 m of fishing line onto a reel whoseradius is 2.3 cm (assumed to be constant as an approximation). Determine the angular speed of the reel
A particular freely falling object requires 1.95 s to travel the last 33.5 m before it hits the ground. From what height above the ground did it fall.
A stone is dropped from a high building which is 3630 cm. when the stone has fallen 20m, what the magnitude of the impulse the Earth received
A park ranger's flashlight beam strikes a lake surface. What angle does the refracted ray make with the normal in the water
A car initially traveling eastward turns north by traveling in a circular path at uniform speed, Determine the car's average speed
An experiment determines that there are 49 allowed rotational energies for a diatomic molecule whose moment of inertia is 2 x 10^-46 kg*m^2. What is the maximum rotational kinetic energy in eV of the molecule?
question two identical ships moving at right angles to each othercollide and stick together. one has an initial
a simple harmonic oscillator consists of a block of mass 3.90 kg attached to a spring of spring constant 169 nm. when t
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