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water flows at the rate of 302 kgs through a hose with a diameter of 308 cm what is the speed of water in this hoseif
in her bathroom mindy has an overhead heater that consists of a coiled wire made of nichrome that gets hot when turned
in an experiment 030 mol h2 and 030 mol i2 are mixed into a 100-l container and the reaction forms hi if kc 49 for
two air-track gliders of equal mass are initially moving in the same direction along a straight line the rearmost
a 40 kg block rests at the edge of a disk with a mass of 50 kg and a radius of 30 cma a 2 n force is applied to the
cs2g 3cl2glt--gtccl4g s2cl2g at a given tempature the reaction above is at equalibrium when cs2 0050 m cl2 025 m
an astronaut is stuck in space with no fuel for his thrusters he is 250 m away from his ship and only has a heavy
a snowball rolls down a 200 m long hill at an angle of 30o above the horizon after leaving the hill it rolls toward a
an engine delivers 400 j of work while it takes in energy from a 400 k thermal source if the engine discharges energy
what is theb kp equalibrium constant expression for the following equalibrium s8 s 24f2glt--gt 8sf6g
a sample of ammonia gas was allowed to come to equalibrium at 400k 2nh3g lt--gt n2g 3h2g at equalibrium it was found
if 100 mol of oxygen is heated at constant pressure of 100 atm from 100degc to 250degc how much heat is absorbed by the
a toy steam engine has a mass of 100 kg the toy starts from rest and reaches a velocity of 400 ms in a time of 300
nitrogen triflouride decomposes to form nitrogen and flourine gases according to the following equation 2nf3 g lt--gt
a horizontal plank 400 m long and having mass 200 kg rests on two pivots one at the left end and a second 100 m from
a kilogram of water c 4186 kjkg degc is stirred using a 400 watt device for 5 minutes at the end of this time the
a converging lens of focal length 770 cm is placed 520 cm behind a diverging lens parallel light enters the diverging
the following reaction is investigated assume an ideal gas mixture2n2og n2h4g lt--gt 3n2g 2h2og initially there are
calculate the maximum electric field associated with a laser beam operated with a 10 mw power supply and a beam
a brass plate measures 300 cm by 400 cm the coefficient of linear thermal expansion is 190 10-6degc if the temperature
a 100 liter water bottle is filled to the brim with water when the temperature is 500degc the bottle is sealed after it
an ambulance is generating a siren sound at a frequency of 2400 hz the velocity of sound is 3450 ms if the observer is
the sound of a bird singing is given as 5 db what is the intensity of the sound of a bird
you see lightning flash followed 82 seconds later by the sound of thunder the ambient air temperature is 12degc
the bulk modulus of aluminum is 71 1010 nm2 if the density of aluminum is 27 103 kgm3 then what is the speed of sound