Physics, 24.02.2020 18:27 Csoard2004
The siren of an ambulance wails at 1395 Hz when the ambulance is stationary. What frequency will you hear after this ambulance passes you while traveling at 33.60 m/s? The speed of sound under the prevailing conditions is 343 m/s.
Answers: 1
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Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?
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The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.
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Which of these has some mechanical energy? a. an atom b. heat inside earth c. a book on a shelf d. the fire from a lit match
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The siren of an ambulance wails at 1395 Hz when the ambulance is stationary. What frequency will you...
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