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An ambulance is traveling east at 55.6 m/s. Behind it there is a car traveling along the same direction at 34.5 m/s. The ambulance driver hears his siren at a frequency of 888 Hz.
A) What is the wavelength of the sound of the ambulance's siren if you are standing at the position of the car? The velocity of sound in air is 343 m/s .
B) At what frequency does the driver of the car hear the ambulance's siren?
A standard 100 W (120 V) lightbulb contains a 9.90cm -long tungsten filament. The high-temperature resistivity of tungsten, What is the diameter of the filament
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A dockworker applies a constant horizontal force of 70.0N to a block of ice on a smooth horizontal floor. how far does the block move in the next 4.50s
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For the arrangement shown in the figure below, an object is placed 0.37 m in front of the converging lens, which has a focal length of 0.17 m. where is the final image formed
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