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your friend is diving in ocean water whose refractive index is different from pure water you send a light beam to see
two small non conducting spheres have a total positive charge of 1084 muc when placed 108 meters apart the force each
the g string on a violin has a fundamental frequency of 196 hertz it is 33 centimeter long and has a mass of 0500 gram
a rod 1500 m long consists of a 0900 m length of aluminium joined end-to-end to a 0600 m length of brass the free end
a pipe open at both ends has a fundamental frequency of 250 hertz when the temperature is 0degca evaluate what is the
the human ear canal is about 29 centimeter long if it is regarded as a tube open at one end and closed at the eardrum
the windpipe of a typical whooping crane is about 44 feet long calculate the lowest resonant frequency of this pipe
a 20-cm wide diffraction grating has 1000 slits it is illuminated by light of wavelength 530nmwhat are the angles of
a 54 centimeter guitar string under a tension of 50000 newton has a mass per unit length of 010000 gcm find what is the
a block of mass m and initial speed collides elastically with a block of mass 2m which is initially at rest assuming
a stretched string of length l is observed to vibrate in five equivalent segments when driven by a 724 hertz oscillator
the potential difference among the plates of a capacitor is 170 v midway between the plates a proton and an electron
an alert physics learner stands beside the tracks as a train rolls slowly past he notes that the frequency of the train
a commuter train passes a passenger platform at a constant speed of 399 ms the train horn is sounded at its
a train sounds its horn as it approaches an intersection the horn can just be heard at a level of 52 db by an observer
there is evidence that elephants communicate via infrasound generating rumbling vocalizations as low as 14 hertz that
one of the loudest sounds in recent history was that made by the explosion of krakatoa on 26-27 august 1883 according
a sound wave traveling in air at 73degc has a frequency of 776 hertza compute what is the wave speedmsb compute what
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