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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
two trains on separate tracks move toward each other train first has a speed of 124 kmh second train a speed of 680 kmh
an alert physics learner stands beside the tracks as a train rolls slowly past he notes that the frequency of the train
a stretched string of length l is observed to vibrate in six identical segments when driven by a 600 hertz oscillator
find how far and in what direction should a cellist move her finger to adjust a strings tone from an out-of-tune 448
a 58 centimeter guitar string under a tension of 60000 newton has a mass per unit length of 010000 gcm obtain the
the windpipe of a typical whooping crane is about 47 feet long determine what is the lowest resonant frequency of this