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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.)
When throwing a baseball, a force is exerted by the hand on the ball. a. Is this force a contact force or a field force? Contact Force b. Throwing a ball 6 m straight upwa
Q Define threshold frequency? The minimum frequency of incident radiation lower which the photoelectric emission isn't possible completely but high the intensity of incident r
Can you show mathematically that the total energy of a simple harmonic oscillator remains constant?
Q. How several pounds does one gallon of water weigh? Answer:- One wine measure or else US gallon of water weighs 8.34 pounds. An imposing Gallon is ten pounds of water at
are thermo-electric thermometres fairly sensitive ?
Insulators: Insulators are those substances which do not permit to pass electric current by them. e.g. Wood, Plastic, rubber, glass etc
Demonstrate the typical ultrasonic flaw detector in transmission mode? A typical ultrasonic flaw detector into its transmission mode is as demonstrated below. In this w
An electric dipole of dipole moment 20, X 10 -6 C.m is enclosed by a closed surface. What is the net flux coming out of the surface?
Combination of Resistance: In electric circuits the resistors are interlinked in two ways. Resistance in Series Resistance in Parallel
Illustrate Kirchhoff's law in electricity and apply them to Wheatstone bridge to get its balancing condition. Illustrate the basic principle of meter bridge. Define an experimen
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