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a carnot engine uses reservoirs at temperatures of 270degc and 327degc in one cycle it uses 600 j of heat from the high
a 48-m-diameter merry-go-round is initially turning with a 43 s period it slows down and stops in 16 s before slowing
in order to stop a 1500kg car that is originally moving at 25ms and if the car stops over a distance of 50m what
1 125g of a compound when dissolved in 15mls of benzene lowers the freezing point of benzene from -6 degrees celsuis to
a bob of mass 0300 is suspended from a fixed point with a massless string of length 250 you will investigate the
1 how much 0100 m hcl is required to titrate 250 ml of 0190 m na2co3 and how much 0100 m hcl is required to titrate 250
a gas in a cylinder with a piston that slides freely within is adiabatically expanded from 15 to 17 m3 if the pressure
tartaric acidh2c4h4o6 has two acidic hydrogens the acid is often present in wines and precipitates from solution as
multiple-concept example 11 reviews the concepts that are important in this problem what is the radius of a
in the figure a laser beam of power 510 w and diameter 220 mm is directed upward at one circular face of diameter less
a rope is with each end is attached to a ceiling that is 8ft long the ends are positioned 6ft apart a second rope 3ft
an investigator is conducting kinetic experiments on a first-order reaction ap for which the rate coefficient at 298 k
a satellite is in a circular orbit around an unknown planet the satellite has a speed of 193 x 104 ms and the radius of
a swing ride at a carnival consists of chairs that are swung in a circle by 120 m cables attached to a vertical
the a and b reaction has a rate constant of 5 x 10-2 min-1 at 25 degrees celsius calculate the concentration of a in
a 670 kg diver is 490 m above the water falling at speed of 640 ms calculate her kinetic energy as she hits the water
01 g of na2co3 - k2co3 powder mixture was reacted with excess hcl according to the gas volumetric measurement 204 cm3
a weight of 450 n is suspended from a spring that has a force constant of 220 nm the system is undamped and is
1 from 15 ml h2o2 solution 220 ml gas evolved at 280 degrees celcius and 740 hgmm pressure calculate the concentration
a 280-g object moving to the right at 200 cms overtakes and collides elastically with a 70-g object moving in the same
a 0285-kg volleyball approaches a player horizontally with a speed of 140 ms the player strikes the ball with her fist
there are different ways to represent and analyze data for enzyme-catalysed reactions for example in the eadie -
a large fraction of the ultraviolet uv radiation coming from the sun is absorbed by the atmosphere the main uv
as part of a carnival game a 0503-kg ball is thrown at a stack of 193-cm tall 0423-kg objects and hits with a perfectly
a block of weight w 350n sits on a frictionless inclined plane which makes an angle theta 290 with respect to the