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a point charge of q is placed at the center of a square and asecond point charge of -q is placed at the upper-left
a point source of light illuminates an aperture 400 away a 170 -wide bright patch of light appears on a screen 200
a 10-c charge is 15 m from a second charge and the force betweenthem is 10 n what is the magnitude of the second
a tennis ball is thrown out a window 28m above the ground at an initial velocity of 150 ms and 20 degrees below the
a sled of mass 8 kg is on a frictionless slope inclined at 35degrees to the horizantalit is pulled by a rope that makes
if it takes 917 min for the concentration of a reactant to drop to 20 of its initial value in a first-order reaction
consider a length of pipe in air take the velocity of sound in air to be 343 msa calculate the length for a pipe that
the fundamental frequency of an open pipe corresponds to middle e 3296 hz on the chromatic musical scale the third
you dissolved three salts in the previous lab nacl cacl2 and alcl3-6h2o which of these three on a per gram basis will
a wooden block slides directly down an inclined plane at a constant velocity of 60 ms how large is the coefficient of
a teacher sits on a freely rotating stool holding two weights each of mass 260 kg when her arms are extended
a boy and girl are balanced on a massless seesaw the boy has amass of 75kg and the girl has a mass of 50kg if the boy
in this experiment you are adding naphthalene to cyclohexane and using the freezing point depression to determine its
a skateboarder whose mass is 57kg is moving at 37ms at thetop of a 51m ramp without pushing on the ground she rolls
a vibrating string with a uniform linear mass density exhibits a single-loop standing wave pattern with a frequency of
you determine that the freezing point of a solution consisting of 200 g of cyclohexane and an unknown amount of
in an average human basic life processes require energy to besupplied at a steady rate of 100 rm wwhat daily
a puck on a frictionless air hockey table has a mass of 0500 kg and is attached to a cord passing through a hole in the
a thin rod of uniform mass density has length l 120 m and mass m 200 kg it is pivoted about a horizontal frictionless
an aluminum tank of volume 00300 meters cubed is filledto the top with mercury at 20 degrees c the tank is placed
diffraction of a wave through an opening may be observed when its wavelength is comparable to within a factor of 100 to
a harpsichord string of length 165 m and linear mass density 244 mgm vibrates at a fundamental frequency of 445 hz1
nitric oxide no reacts instantly with oxygen gas to form nitrogen dioxide no2 a dark-brown gas2 nog o2g 2 no2gin one
nbspa 1000hz sound travels through pure oxygennbsp the wavelength of the sound is measured to be 065mnbsp what is the