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two metal cylinders appear to be identical you measure the radii and find them to be the same you dont have a scale or
a 140 kg iron horseshoe is taken from a forge at 950degc and dropped into 400 kg of water at 140degc assuming that no
two children with masses 31 kg on the left and 45 kg on the right sit at opposite ends of a 32 m long seesaw with mass
write two equations for the dehydration of 2-methyl-2-butanol one should show yhe structures of both alkenes and the
a wheel having a radius 050 m and inertia of 117 kg middot m2 is rotating freely at 54 revmin the wheel can be stopped
a 110m long ramp is inclined at 13 degrees to the horizontal a solid ball is released from rest at the top of the
one end of a string 30 m long is moved up and down with simple harmonic motion at a frequency of 60 hz the waves reach
a wheel 550 cm in diameter accelerates uniformly from 215 rpm to 370 rpm if in this process a point on the edge of this
find the absolute and percent relative uncertainty and express the answer with a reasonable number of significant
squids and octopuses propel themselves by expelling water they do this by taking the water into a cavity and then
a person doing a chin-up weighs 680 n exclusive of the arms during the first 250 cm of the lift each arm exerts an
an old fashion record is spinning freely at 78 rpm revolutions per minute when another record is dropped lightly
if we took exactly 100 ml of a 1000 m solution of cuno32 and placed it in 99000 ml of water and mixed it then took 200
if we too exactly 100ml of a 1000 m solution of cuno32 and placed it in 99000 ml of water and mixed it then took 200 ml
how many grams of ethylene glycol c2h6o2 must be added to 115 kg of water to produce a solution that freezes at -482
a very long straight solenoid with a cross-sectional area of 186 is wound with 902 turns of wire per centimeter
a 66-n m torque acts on a wheel with a moment of inertia 175 kg m2 if the wheel starts from rest how long will it
just as it has reached an upward speed of 500 ms during a vertical launch a rocket explodes into two pieces photographs
a typcial ultra high vacuum chamber is capable of achieving a pressure of 10-11 torr calculate the average number of
two converging lenses having focal lengths of f1 111 cm and f2 200 cm are placed 500 cm apart as shown in the figure
imagine a unit of charge called the zorg a chemist performs the oil drop experiment and measures the charge of each
a uniform 13-kg trap door is oriented horizontally and hinged as shown what is the magnitude of the torque on the door
you need to dissolve cacl2 in water to make a mixture that is 410 calcium chloride by mass if the total mass of the