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Ambulance siren emits a frequency of 500 Hz moving at a speed of 20 m / s to walk along the highway. If the propagation of sound in air 330 Hz and wind speed of 5 m / s direction of movement of ambulances. Determine frequency heard by an observer sitting on the edge of the road when the ambulance moves away from the observer!
The wingspan (tip-to-tip) of a Boeing 747 jetliner is 59 m. The plane is flying horizontally at a speed of 300 m/s. Find the emf induced between the wing tips
Point charge 2.0 µC is located at x = 0, y = 0.30 m, point charge -2.0 µC is located at x = 0 y = -0.30 m. What is the magnitude of the total electric force that these charges exert on a third point charge Q = 5.0 µC at x = 0.40 m, y = 0
A uniform disk with mass 43.1 kg and radius 0.230 m is pivoted at its center about a horizontal, frictionless axle that is stationary. What is the magnitude a of the resultant acceleration of a point on the rim of the disk after the disk has turned..
light from a hydrogen discharge passes through a diffraction grating and registers on a detector 1.5 m behind the
during a lightning flash there exists a potential difference of vcloud - vground 1.7 x 109 v between a cloud and the
A 900 Kg truck is driving at 45 m/s when it hits a large soft object and becomes embedded with it. Find the amount of work the object does to bring the truck to a stop
A 10-turn circular couil of radius 20mm carries a current of0.50 A. Find the magnetic field magnitude at its center
develop a hypothesis for how kernel color is inherited . the hypothesis should includea number of genes involvedb
Suppose the river is flowing east at 3 m/s and the boat is traveling south at 4 m/s with respect to the river, Find the speed and direction of the boat relative to Earth
a 5 mf capacitor and a 9 mf capacitor are connected in parallel to a 60 hz generator operating with an rms voltage of 120 v
How much heat transfer is nec to raise the temp of a .200kg piece of ice from -20C to 130C including the energy needed for phase changes
The intensity (in W/m2) of one sound is 5.46 times as great as the intensity of another sound. what is the intensity level of the louder sound
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