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a cube of ice is taken from the freezer at -95degc and placed in a 105 g aluminum calorimeter filled with 323 g of
a rocket a moves past a lab b at a speed of 9c a technician in the lab records 35 s for the time of an event that
a pendulum clock has an aluminum pendulum exactly 10m long when the clock is calibrated perfectly the temperature
ethylene glycol ch2ohch2oh an important ingredient in automobile antifreeze is much more soluble in water than octyl
the magnitudes of the concave and convex surfaces of a glass lens are 200 and 600 mm respectively what is the focal
a candle is 360cm from a concave mirror with focal length 150cm and on the mirror axisa how far is its image from the
in the lewis structure of hoch2ch2oh how many valence electrons need to be shown and how many pairs of electrons are
a 3000ml flask is initially open to air at 22degc and 1atm pressure its then closed and immersed in boiling water when
the electron configuration of the outermost electrons of the alkaline earth metals can be represented bya ns1b ns2c
at a pressure of 00500 atm a constant-volume ideal gas thermometer reads a temperature of 345 k what is the
if 6010 moles of an ideal gas has a pressure of 3390 times 105 pa and a volume of 0111 m3 what is the temperature of
the binary hydrogen compounds of the group 4a elements and their boiling points are ch4 -162 deg c sih4 -112 deg c geh4
water at a pressure of 13 atm at street level flows into a building at 3ms through a 6 cm diameter pipe the pipe tapers
a spinning disk of mass 50 kg and radius 025m is rotating about an axis through its center at 400 revmin a what is the
a 1000 ml sample of vinegar is titrated with 05062 m naoh and 1658 ml is needed to reach the equivalence point what is
consider a bicycle wheel rotating about its axel if it is rotating at 2 revolutions per second and the radius of the
a compound containing only antimony and oxygen is 8353 antimony by mass the molar mass is between 500 and 625 gmol what
to focus a camera on objects at different distances the converging lens is moved toward or away from the film so a
a 120 kg mass on a horizontal spring oscillates on a frictionless surface with a displacement as a function of time
calculate the mass of nitrogen dissolved at room temperature in an 840 home aquarium assume a total pressure of 10 and
marble is composed of caco3 caco3 can be made from the reaction of cao with co2 how many pounds of co2 are locked up in
a hydraulic jack has an input piston of area 0050 m2 and an out put piston of area 070m2 how much force on the input
what is the freezing point of a solution that contains 120 g of glucose c6h12o6 in 500 g of water kf 186degcma -248
two uniform solid cylinders each rotating about its centrallongitudinal axis have the same mass of 492 kg and rotate
if we assume that the hospital is always full we can conserve the system by letting lambda deltasst deltahht