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a 065 g sample of fructose mw 180 gmol is burned in a bomb calorimeter that has a heat capacity of 269 kjoc the
a 1000g sample of nickel is heated to 1000 oc celsius and is placed in a coffee cup calorimeter containing 150 g of
a beam used in construction is made of steel which has a coefficient of linear expansion of 13 times 10-5 k-1 the beam
in a coffee-cup calorimeter 1 mol koh and 1 mol hbr initially at 235 oc celsius are mixed in 100g of water to yield the
if you twirl a small 70-g wooden ball in a circle at 40 revolutions per second on a light 10-cm string approximately
which of the following statements correctly describes the geometry of the sp3 hybrids for molecules that have sn 4 a
a simple camera telephoto lens consists of two lenses the objective lens has a focal length f1 440 cm precisely 410 cm
a tank holds 182 moles of argon gas atomic mass 6633521 times 10-26 kg at a pressure of 101300 pa and a temperature of
suggest an experimental procedure that could be used to synthesize 12-dimethylcyclopentene from
a cylinder with a movable piston contains 121 moles of a monatomic ideal gas at a pressure of 15 times 105 pa the gas
when a patient is being fitted with contact lenses the curvature of the patients cornea is measured with an instrument
a 85-kg sprinter accelerates from rest to a speed of 100 ms in a 50 sa calculate the mechanical work done by the
a tennis player swings her 1000g racket with a speed of 10ms she hits a 60g tennis ball that was approaching her at a
a converging lens of focal length 8000 cm is 203 cm to the left of a diverging lens of focal length -600 cm a coin is
a 600nm laser hits glass with an incident angle of 30deg if the glass has and index of refraction of 17 findthe angle
to stretch a certain spring by 290cm from its equilibrium position requires 750j of work what is the force constant of
waves on a 10 meter rope travel at 20 ms you shake the rope back and forth until you get a standing wave with a single
suppose a star with radius 861 108 m has a peak wavelength of 686 nm in the spectrum of its emitted radiationa find
two cylinders each contain 020mol of a diatomic gas at 340k and a pressure of 30 atm cylinder a expands isothermally
a rope with 300 g of mass per meter is under 580 n tension a wave with frequency 31 hz and amplitude 65 cm is
if you take data in paris of x and y related by the equation 5x cy47 what would you graph to linearize the data
a 324 g sample of lauric acid c12h24o2 a common constituent of fats is burned in a bomb calorimeter the temperature of
in hot-air ballooning a large balloon is filled with air heated by a gas burner at the bottom why must the air be
a 080 kg mass is attached to a light spring with a force constant of 239 nm and set into oscillation on a horizontal