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find the moment of inertia of a hoop a thin-walled hollow ring with mass and radius about an axis perpendicular to the
what is the minimum thickness of coating which should be placed on a lens in order to minimize reflection of 406 nm
in a classroom demonstration a 792-kg physics professor lies on a bed of nails the bed consists of a large number of
a series rndashlndashc circuit of r 210ohms l 0950h and c 225uf carries an rms current of 0270a with a frequency of
if 120 g naphthalene c10h8 is dissolved in 1194 g chloroform what is the molality of the
a bowler throws a bowling ball of radius r 11 cm along a lane the ball the figure slides on the lane with initial
when solid cach3coo2 is dissolved in a nearly saturated solution of cach3coo2 the solution becomes warmer this
a 14-kg playground ball is moving with a velocity of 30 ms directed 30deg below the horizontal just before it strikes a
what is the mole fraction of ureach4n2o in an aqueoues solution that is 360 urea by
sparkling wine is bottled under a co2 pressure of 41 atm the solubility of co2 at 41 atm is 070 g100 g h2o what is its
how is the principle on which the gaussmeter is based related to the motion of the electron perpendicular to a uniform
the collision between a hammer and a nail can be considered to be approximately elastic estimate the kinetic energy
a 20-kg block slides down a fixed rough curved track the block has a speed of 50 ms after its height above a horizontal
what is the expected freezing point of a solution prepared by dissolving 425g of naphthalene c10h8 in 264g of benzene
1 a solar eclipse is projected through a pin- hole of diameter 0247mmand strikes a screen 312 m away what is the
the diffusion constant for the alcohol ethanol in water is 124 10-9 m2s a cylinder has a cross-sectional area of 385
an object has a kinetic energy of 275 j and a momentum of magnitude 250 kg ms find the speed and mass of the
a government agency estimated that air bags have saved over 14000 lives as of april 2004 in the united states they also
a solution containing agno3 is mixed with a solution of nacl to form a solution that is 010 m in agno3 and 0075 m in
a solution containing cacl2 is mixed with a solution of li2c2o4 to form a solution that is 35 x 10-4 m in calcium ion
a steel wire of length 202 with circular cross section must stretch no more than 0210 when a tensile stretching force
a solution may contain the following ions ag cu2 mn2 ca2 and na no precipitate formed when 010 m nacl was added but a
a car with a mass of 950-kg and an initial speed of v1 222 ms approaches an intersection as shown in the figure a
an 800 n box is pulled 190 m up a 30deg incline by an applied force of 97 n that points upward parallel to the incline
a solution containing sulfide ions is added to selectively precipitate one of the metal ions from solution at what