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Two trains on separate tracks move toward one another. Train 1has a speed of 140 km/h, train 2 speed of 55.0 km/h. Train 2 blows it shorn, emitting a frequency of 500 Hz. What is the frequency heard by the engineer on train 1? (Assume the speed of sound is 345m/s.)
on air pollution
Regard as a capacitor which is charged to 12 volts and then connected across a resistor. Allow t1/2 be the time it takes for the voltage to drop down to 6 volts. Presume the experi
define definition priniciples?
an object has moved through a distance.can it have zero displacement?if yes support your answer with an example
what is the result of principle of superposition
The energy to which the human ears are sensitive is named as sound. In general all parts of waves are produced in an elastic material phase, Irrespective of while these are listen
why value of g at center of earth is zero?
Dimentional formula of moment of inertia ML 2
Forces on a Pendulum The weight, force because of tension, and total force exerted on the bob of a pendulum are displayed.
Explain the thermal detectors method of detection of ultrasonic waves. Thermal detectors method: It is the most generally used method of detection of ultrasonic waves. In th
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