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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.)
A 10 V ZENER DIODE ALONG WITH A SERIES RESISTOR IS CONNECTED ACROSS A 40 V SUPPLY.CALCULATE THE MINIMUM VALUE OF THE RESISTOR REQUIRED,IF THE MAXIMUM ZENER CURRENT IS 50 mA?
Using cross belts cross the belt on the spool pulleys used in C 1 above and turn one of the pulleys. Note that they now turn in opposite directions.
GIve live examples for like and unlike parallel forces
linear polarizers whose transmission axes make an angle of 45degree with each other,.The transmitted light intensity through both polarizers is what percentage of the incident inte
assignment
one coin is thrown upword from 100m top building with velocity 15m/s .2s later 2nd coin is dropped downword at what distance from top of building 2nd coin cross first? Ans) They
write a comrehensive note on mass energa relation
Why is it that the frequency of light remains the constant as it undergoes refraction at the interface of two material mediums? Ans) If frequencies are dissimilar in different m
Regard as a volume of space in which the electric potential is 125,000 volts (at every point in the volume of space) and what is the electric field in that region of space? Ans
Advantages of D.C. transmission of power 1. It needs only two conductors as compared to three for a.c. transmission. 2. There is not an inductance, capacitance, phase displ
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