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the alarm at a fire station rings and a 79-kg fireman starting from rest slides down a pole to the floor below a
a guitar string is 91 cm long andhas a mass of 36 g the distance from the bridge to the supportpost is l 60 cm and the
what mass of aluminum hydroxide can be made from 50 ml of 025m alno33 and 100 ml of 01 m
a parallel-plate vacuum capacitor with its plates separated by a distance of x1 has an amount of energy equal to u
rank the diffusion coefficients from least 1 to greatest 4 for the following cases assume the temperature is the same
a 200 mw laser pulse is focused with a lens to a diameter of20muma what is the laser beams electric field amplitude at
how do you find the thickness of a piece of tinfoil in atoms with only the piece of foil metric rulers metric balance
a carnot engine operates between a hot reservoir at 310 k and a cold reservoir at 280 k if it absorbs 500 j of heat at
two solutions a and b are labeled 021 m cacl2 and 034 m cacl2 respectively both solutions contain the same number of
an object of mass m200 kg is attached to a spring which is vibrating on a horizontell frictionless table the spring has
write equations for the dissociation of the following in water include physical states for all
a 10kg block is set moving with an initial speed of 6 ms on arough horizontal surface if the force of friction is
a 10-cm-diameter disk emits light uniformly from its surface 20 cm from this disk along its axis is an 90-cm-diameter
a small postage stamp is placed in front of a concavemirror radius 84m such that the image distanceequals the object
the activatoin energy for the diffusion of copper in silver is 193000 jmol calculate the diffusion coefficient at 1200
it is determined by immersing a crown in water that its volumeis 26 in3 00015 ft3a what would its weight be if it were
calculate the work done when 250 g of tin dissolves in excess acid at 100 atm and 29degc assume ideal gas
a crate of mass m 30 kg is placed at rest on a frictionless inclined plane which has an angle 60o above horizontala
a certain part of aircraft engine has a volume of 13ft3a find the weight of the piece when it is made of ironb if the
a small statue is recovered in an archaeological dig itsweight is measured to be 96 lb and its volume 008ft3a what is
a 0879-g sample of a cacl22h20k2c2o4h20 solid salt mixture is dissolved in-150ml of deionized water previously adjusted
a gymnast does a one arm handstand the humerus may beapproximated as a 32 m long cylinder with an outer radius of 12
125 ml of 45m of oxalic acid is added to 200 ml of 055 m of potassium permanganate acidified with a few drops of
department alpha had no beginning inventory the department added direct materials of 100000 and conversion costs of
the salt bx when dissolved in water produces an alkaline solution which of the following could be trueacid hx is a weak