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an ideal carnot freezer in a kitchen has a constant temperature of 263 k whereas the air in the kitchen has a constant
a a laser beam with wavelength 6328 aring is incident normal to the plane of a diffraction grating the grating has
which compound has the higher barrier to rotation about the central c-c bond 23-dimethylbutane or 223-trimethylbutane
a copper wire is 600 m long and has a cross-sectional area of 200 10-4 m2 this wire forms a one turn loop in the shape
the force vector a has a magnitude of 980 newtons n and points due east the force vector b has a magnitude of 111 n and
each day the human heart takes in and discharges about 7500 l of blood if the heart does 140 kilojoules kj of work in
draw both chair conformations of the following structure and label which one is more stable draw the two possible
a 220 kg child is riding a playground merry-go-round that is rotating at 400 rpm what centripetal force must she exert
trimethylamine ch33n has a kb 74x 10-5 what is the percent dissociation of a 015 m solution of this base in
a sphere of copper that has a radius of 5 cm is compressed uniformly by a force of 30 108 n calculate the change in
a satellite of mars called phobos has an orbital radius of 94 106 m and a period of 28 104 s assuming the orbit is
a square wire loop 110 cm on each side carries a clockwise current of 160 apart a find the magnitude of the magnetic
a calculate the freezing point of a solution of 234562g of sucrose c12h24o12 dissolved in 55000g of water for water
water flows through a horizontal tube that is 350 cm long and has an inside diameter of 120 mm at 0400 mls find the
a non-conducting charged sheet and a non-conducting sphere radius b are arranged as shown in the figure the right-most
a calculate the molar solubility of mercury i bromideb i2g br2glt---gt2ibrg kc87 x10 to the second at 150 degrees
an elephant that has a mass of 7000 kg evenly distributes her weight on all four feeta if her feet are approximately
benzaldehyde is easily oxidized by air and produces a white crystalline material what is the name of this oxidation
a flywheel comprises a uniform circular disk with a mass of 1010 kg and a radius of 11 m it rotates with an angular
a liquid fuel mixture contains 3130 hexane c6h14 1575 heptane c7h16 and the rest octane c8h18 what maximum mass of
calculate the buoyant force that would be exerted on a wood object that is 26g and has a volume of 316cm3 and a density
a 827 cm3 gold nugget and a 827 cm3 aluminum block are immersed in water which object experiences the greater buoyant
a turntable that spins at a constant 730rm rpm takes 300rm s to reach this angular speed after it is turned on find its
draw the structure of the product you would have isolated if you had used nabd4 in d2o in this experiment and write a
a 30000-kg freight car is coasting at 0850 ms with negligible friction under a hopper that dumps 110000 kg of scrap