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an unknown compound containing only carbon and hydrogen was burned in excess oxygen when 8480 grams of the compound was
if one of the crystal faces is matted flat or reflecting draw a picture and show how the x-rays travel reflect and
when 1 mol of graphite turns into 1 mol diamond at a pressure of 50 atm what is the value of the
during the spin cycle of your clothes washer the tub rotates at a steady angular velocity of 375 rads find the angular
a 31 kg bundle starts up a 30deg incline with 178 j of kinetic energy how far will it slide up the incline if the
a 1kg non-stretch balloon fabric can form a spherical balloon with a maximum radius of 5m it is attached to a 2kg
a barrel contains a 0110m layer of oil of density 700kgm3 floating on water that is 0210m deep what is the gauge
a wistle frequency 594 hz is essentially a tube with one end open if the 500 hz sound is the 1st harmonic what is the
in a two-slit interference pattern the intensity at the peak of the central maximum is izero iizero 0772 if this helps
two vehicles approach an intercetion at right angles and collide if vehicle 2 has a mass of 600kg vehicle 1 has a mass
the density of ice is 917 kgm3 and the density of sea water is 1025 kgm3 a swimming polar bear climbs onto a piece of
an arbitrary mass of 0200 kg is connected to a light spring with force constant 5 nm and is free to oscillate on a
sodium hydroxide naoh has a lattice energy of -887 kjmol and a heat of hydration of -932 kjmolhow much solution could
a person on earth notices a rocket approaching from the right at a speed of 081c and another rocket approaching from
a metal cylinder with a mass of 07 kg and a radius of 012 m rolls up an inclined plane the rotational velocity at the
a tank contains mercury to a depth of 100cm with water to a depth 230cm floating on top what is the gauge pressure at
the ionic radius of cs 0174nm radius cl- 0181nm and the coordination number of each ion 8 calculate the lattice
a deep-space vehicle moves away from the earth with a speed of 0885c an astronaut on the vehicle measures a time
an unstable particle is at rest and suddenly breaks up into two fragments no external forces act on the particle or its
a block of mass 425 kg hanging from a light string is struck by a projectile of mass 250 g the projectile sticks to the
consider a heat engine that operates between thermal reservoirs at 510 k and 242 k suppose the engine does 4900 j of
a hot-air balloon is accelerating upward under the influence of two forces its weight and the buoyant force for
gas in a container is at a pressure of 15 atm and a volume of 4 m3 what is the work done by the gas if a it expands at
an archer wishes to shoot an arrow at a target at eye level a distance of 565 m away if the initial speed imparted to
what technique would you use to determine the density of approximately 5 grams samples of granular sugar at 20 degress