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periodic waves on the sea move at a speed of 4 ms a boat floating on the sea takes 25 seconds to move from its highest
a you detect a sound level of 97 db when you are 3m from a sound source calculate the power of the source assume it
if 1800 mol of helium gas is at 120 c and a gauge pressure of 0330 atm 1 calculate the volume of the helium gas under
a brass plug is to be placed in a ring made of iron at 10 c the diameter of the plug is 8741 cm and that of the inside
1 the tiresnbspof a car make 65 revolutions as the car slows down uniformly from 100 kmhr to 50 kmhr the diameter of
a spring has a spring constant of 300nm find the magnitude of the force needed to compress the spring by
the sound level in a quite room is 40 db approximately how many times louder is it when a tv is turned on and the sound
a 300nbspg air-track glider attached to a spring with spring constant 13nbspnmnbspis sitting at rest on a frictionless
a ball is thrown with an initial speednbspvinbspat an anglenbspthetainbspwith the horizontal the horizontal range of
a point charge of 5 micro-coulombs is placed at x 1877 cm y 2464 cm and another charge of 7 micro-coulombs is placed
a point charge of 22 micro-coulombs is placed at x 79 cm y 146 cm and another charge of 83 micro-coulombs is placed
you detect a sound level of 97 db when you are 3m from a sound sourcea calculate the power of the source assume it
a person walks in the following pattern 19 km north then 96 km west and finally 34 km south construct the vector
consider the concept of angular momentum explain why angular momentum keeps a spinning top
how can you use newtons force laws to explain the way a rocket works be as specific as you can how would you describe
the vapor pressure of mercury is 173 mm hg at 200oc its heat of vaporization is 594 kjmol determine the a vapor
a spring has a relaxed length ofnbsp34nbspcm 034nbspm and its spring stiffness isnbsp12nbspnm you glue anbsp72nbspgram
1 what basic factors are important in analyzing any type of crash2 how does newtons first law explain why plates stay
an elevator cab and its load have a combined mass of 1600 kg find the tension in the supporting cable when the cab
in a head on collision passengers in which car will experience more gs the car with more momentum or less momentum what
a ring of mass m hangs from a thread and two beads of mass m slide on it without friction the beads are released
a cylindrical capacitor of a length l consists of a conductive wire of radius a at the centre surrounded by a
1 how does the acceleration experienced by a fighter pilot compare to the potential acceleration experienced by
the speed of sound in colorado is about 750 mph which is about 1100 fts at coors field in denver it is about 500 feet