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a hammer strikes one end of a thick iron rail of length 943 meter a microphone placed at the opposite end of the rail
a stone is dropped from rest into a well the sound of the splash is heard exactly 190 second later obtain the depth of
a group of hikers hears an echo 450 second after shouting find how far away is the mountain that reflected the sound
a dolphin located in sea water at a temperature of 25degc emits a sound directed toward the bottom of the ocean 100
on a hot summer day the temperature of air in arizona reaches 113degf find what is the speed of sound in air at this
particles with a proper half-life of 192 x 10-6 second travel a straight line distance of 500 meter at a constant speed
a sound wave from a siren has an intensity of 822 wm2 at a certain point and a second sound wave from a nearby
a sound wave propagating in air has a frequency of 445 khz obtain the change in wavelength when the wave initially
a commuter train blows its horn as it passes a passenger platform at a constant speed of 55 meter per second the train
two children each of mass 20 kilogram ride on the perimeter of a small merry go round that is rotating at rate of 025
the bottom of a flat-bottom aluminum boat has a area40m2 if two fishermen and their fishing gear with total mass of 300
find what volume of water is displaced by a submerged 4 kilogram cylinder made of iron iron density 786 x 103
consider two blocks attached by a mass less rope that is strung over a frictionless and mass less pulley the block on
a 88 kilograms fullback is running at 39 meter per second to the east and is stopped in 085 second by a head-on tackle
an m 700 gram block is released from rest at height h above a vertical spring with spring constant k 350 nm and
1 a steel bar is clamped at both ends the bar is 20 m long draw the fundamental and the second and third harmonics of
a proton is placed at the origin and a second proton is placed on the x-axis at x 598 fm 1 fm 10-15 ma obtain the
a commuter train passes a passenger platform at a fix speed of 419 ms the train horn is sounded at its characteristic
the potential difference between the plates of a parallel plate capacitor is 35 volt and the electric field between the
a train sounds its horn as it approaches an intersection the horn can just be heard at a level of 54 db by an observer
suppose that global lightning on the earth constitutes a constant current of 100 ka between the ground and an
the electric potential vd at point d 8 m 0 is -2000 volt and at point b 2 m 0 is 400 volt obtain the magnitude and
an electron initially at rest is accelerated through a potential difference of 550 volt evaluate the speed of the
an observer on earth notes that a space craft has a speed of 296 x 108 meter per second as it heads towards a remote
an airplane traveling at half the speed of sound emit a sound of frequency 575 khza find at what frequency does a