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a point charge of magnitude q is at the center of a cube with sides of length la what is the electric flux through each
chemists studied the formation of phosgene by sealing 081 atm of carbon monoxide and 137 atm of chlorine in a reactor
a person on a safari wants to take a photograph of a hippopotamus from a distance of 788 m the animal is 490 m long and
concentrated sulfuric acid is 98 by mass h2so4 with the remaining mass being water what is the molar concentration ie
kim says that she was less than 10 ft away from the president when she took a picture of him with her 53-mm focal
an ammoniaammonium buffer solution contains 019m nh3 and 061m nh4 the kb value of ammonia is 18 x 10-5 calculate the
calculate go in j for 1 moles of electrons in each half-reaction and a standard potential of 027
a laser beam is traveling through an unknown substance when it encounters a boundary with air the angle of reflection
the right-side rearview mirror of mikes car says that objects in the mirror are closer than they appear mike decides to
a half-cell that consists of a copper wire in 100 m cuno3 solution is connected by a salt bridge to a half cell
use standard reduction potentials shown below to calculate the potential of a nickel-cadmium cell that uses a basic
an open-open organ pipe is 842 cm long an open-closed pipe has a fundamental frequency equal to the third harmonic of
air is 21 mole percent oxygen that is 021 atm oxygen at 1 atm suppose the ph of the water is 528 and that the
a guitar string with a linear density of 20 gm is stretched between supports that are 60 cm apart the string is
for the above current at 301 v how much electrical energy in kw-hr is consumed in the production of 1 kg of aluminum a
the volume of an ideal gas is increased from 1 m3 to 2 m3 while maintaining a constant pressure of 1000 pa 1 pa 1 nm2a
the electrolysis of molten a12o3 at 980 ordmc is used to produce metallic aluminum a current of 777 a is used in the
a 704 g ice cube floats in the arctic sea the temperature and pressure of the system and surroundings are at 1 atm and
a nail gun fires a nail into a piece of wood the nail is going a velocity of 90 ms right before entering the wood the
the solvay process is an industrial method for preparing baking soda in the process co2 nh3 h2o and nacl react to
a 1967 kennedy half-dollar has a mass of 1150 x 10-2 kg the coin is a mixture of silver and copper and in water weighs
if the rms electric field of this light is 160nc at a distance of 130m from the bulb what is the average total power
a nuclear power plant operating at 400 efficiency produces 1122 mw of usable power in 100 year and consumes 115times106
a 1n apple which is 5 m from the ground breaks from its stem and falls to the ground when it has fallen a distance of 2
potassium metal reacts with water to give potassium hydrozide and hydrogen gas if 500 ml of hydrogen gas is produced at