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two spheres each of radius r have volume charge densities 0593nbspcm3nbspand -0593nbspcm3 respectively the positively
a disk of radius 82 cm is oriented with its area vector at 10onbspto a uniform electric field of magnitude
the kelvin temperature of an object is t1 and the object radiates a certain amount of energy per second the kelvin
a 4000 kg truck is at rest at an intersection waiting for a green light with no other vehicles around it is a snowy and
complete the following exercises1 a rifle with a longer barrel can fire bullets with a larger velocity than a rifle
complete the following exercises1 jane is collecting data for a ball rolling down a hill she measures out a set of
a household wine is measured to be 145 vv ethanol what volume of ethanol would be contained innbsptwonbspbottles of
an aqueous solution has 00086 g of oxygen dissolved in 25 l of water calculate the dissolved oxygen concentration of
a student was instructed to prepare 250 ml of a 0500 moll solution potassium permanganate what is the correct order for
a recent study found the median level of lead ion concentration in canadian tap water is 23 x 10nbsp-8nbspmol l
ex 500 mm of ph 22 rain falls on 200m x 400 m of soilnbspcalculate how many kilograms of caco3 is needed to neutralize
chlor-alkali plants electrolyze nacl to produce the commodity chemicals caustic soda and chlorine gasnbspindustrial
a student compares the fundamental resonating frequencies of two equal length pipes pipe a is open on both ends pipe b
astronauts on a distant planet set up a simple pendulum of length 12 m the pendulum executes simple harmonic motion and
a grating has 8300 linescm how many complete spectral orders can be seen 400 nm to 700 nm when it is illuminated by
an electron experiences the greatest force as it travels 17nbsp106nbspms in a magnetic field when it is moving
alpha particles of chargenbspqnbsp 2enbspand massnbspmnbsp 66nbspnbsp10-27nbspkg are emitted from a radioactive source
a spinning disk experiences a constant torque which of the quantities - angular acceleration tangential acceleration at
how does the gravitational force on a falling body compare with the air resistance it encounters before it reaches
the apparatus consists of a round level table in the center of which is a massless ring there are three strings tied to
a heavy-duty stapling gun uses anbsp0128nbspkg metal rod that rams against the staple to eject it the rod is attached
a 100 g mass is attached to a spring and undergoes simple harmonic motion its maximum acceleration is 15 ms2nbspand its
a sign m 10 kg has one end affixed to the exterior wall by a freely rotating hinge the other end of the sign is
describe the amplitude and frequency of the sound for a high loud note identify the characteristics of the sound that
your friend beats a drum across the room from you how does the drum make a sound how does the energy of the sound reach