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1 the molar mass of bano3 is2 consider the following reaction 3 no2 h2o-2hno3 no what volume of water is needed to
red light from three separate sources passes through a diffraction grating with 600times105 linesm the wavelengths of
a 165 kg bowling trophy is held at arms length a distance of 068 m from the shoulder jointwhat is the magnitude of the
a large flask is evacuated and weighed filled with argon gas and then reweighed when reweighed the flask is found to
a lucite planoconvex lens has one flat surface and one with r 163cm it is used to view an object located 610cm away
rays of the sun are seen to make a 356 angle to the vertical beneath the waterat what angle above the horizon is the
what is the wavelength in nanometers of the light emitted when the electron in a hydrogen atom drops from the energy
an astronaut on a spaceship traveling at 075c relative to earth measures his ship to be 29m long on the ship he eats
a gas is confined to a cylinder under constant atmospheric pressure when 415 j of heat is added to the gas it expands
an equilateral triangle 100m on a side has a 100-kg mass at one corner and a 250-kg mass at the each of the other two
a compact disk which has a radius of 60cm speeds up uniformly from zero to 43 revs in 32 swhat is the tengential
a hydrocarbon gas contains 8171 carbon and 1829 hydrogen by mass at stp 420 l of the gas has a mass of 827 g what is
a distant galaxy is moving away from the earth with a speed that results in each wavelength received on the earth being
what is the average velocity of the argon atoms in the gas phase at 75 degrees
ethane and bromine react immediately after being irradiated with uv light when irradiation stopped the rate of reaction
an inductor has a 570- reactance when connected to a 600-hz source the inductor is removed and then connected to a
a horizontal water main with a cross-sectional area of 208 cm2 necks down to a pipe of area 450 cm2 meters mounted in
how many moles of oxygen are needed to produce 6 mol of fe2o3 in the following unbalanced equation fe o3 --gt
a rectangular shape ferry boat is 477 m wide and 677 m long when a large loaded truck pulls onto it it sinks 365 cm
a particular garden hose has an inside diameter of 34 in the nozzle opening has a diameter of 14 in when the flow speed
a solution of magnesium chloride is mixed with a solution of sodium hydroxide predict any precipitates that are
a main supply pipe of radius 79 mm is connected to two pipes a and b of radii 483 mm and 340 mm respectively if the
a silver nitrate primary standard for a gravimetric titration of chloride was prepared by dissolving 4872 plusmn 0003 g
a hydraulic jack is made with a small piston 12 cm in diameter that is used to move a large piston 61 cm in diameter if
suppose a radio station emits em waves uniformly in all directions what is the maximum power level of this radio