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A student uses an audio oscillator of adjustable frequency tomeasure the depth of a water well. Two successive resonant frequencies are heard at 108Hz and 132 Hz. The speed of sound in air is 344 m/s. What is the depth of thewell? Answer in units of m.
Water flows through a 2.7cm -diameter pipe at 2.1m/s. If the pipe narrows to 1.7cm diameter, what is the flow speed in the constriction
Ship moving initially at 10.7 m/s due North, drifts due NE at the same speed. To correct the bearing, the captain accelerates the engine and turns the rudder NW. If the engines deliver a constant acceleration of 4.4 m/s2, how long will it take to a..
The average density of the planet uranus is 1.27 x 10^3 kg/m^3. The ratio of the mass of neptune to that of Uranus is 1.19. Find the average density of Neptune
When 1.0 kg of coal is burned, about 3.0 x 107 J of energy is released. how many kilograms of coal must be burned to produce the same energy as 0.79 kg of 92U235
A source emits sound uniformly in all directions. A radial line is drawn from this source. On this line, determine the radial positions of two points, 0.786m apart, such that intensity level at one point is 1.72 dB greater than that at the other.
A metal container, which has a mass of 8.8 kg contains 15.1 kg of water. A 2.4-kg piece of the same metal, initially at a temperature of 180.0°C, Calculate the specific heat of the metal
q1. what is the wavelength of the waves emitted by source? what is the difference in frequency between directly
a ball is shot from the ground into the air. at a height of 10.20 m the velocity is observed to be v 8.50 ms i 7.10
At the end of an amusement park ride, you want the gondola to stop without the acceleration exceeding 2 g's. what is the maximum allowed braking force
a factory worker pushes a 30.2kg crate a distance of 4.5m along a level floor at constant velocity by pushing downward
Block A has a mass of 2 kg and rests on a smooth table. What is the acceleration in m/s2 of the two blocks
A gas cylinder with a tight-fitting, movable piston contains 200 cm3 of air at 1.0 atm. What is the volume of gas at this depth
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