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a 22 m long uniform plank is supported by two bathroom scales one at either end initially the scales each read 1000 n a
a block of mass m1 11 kg is held at the top of a frictionless inclined plane at point a 6m above the ground a second
a dietary calorie is actually a kilocalorie note that by convention a capital c is always used to indicate a dietary
a typical wall outlet voltage is 120 volts in the united states personal mp3 players require much smaller voltages
you need to produce a solenoid that has an inductance of 305 h you construct the solenoid by uniformly winding 107 m
you wind a small paper tube uniformly with 197 turns of thin wire to form a solenoid the tubes diameter is 801 mm and
give the structure of a compound that has a formula of c9h10o2 and has signals in the 13c nmr spectrum at 136 ppm ch3
the relationship between the vapor pressure of a liquid and temperature can be expressed by the clausius-clapeyron
vanadium crystallizes in a body-centered cubic lattice and the length of the edge of a unit cell is 305 pm what is the
a roller coaster car is at the top of a loop-de-loop and is at the point where it is upside down not ignoring air
the earth moves in a very nearly circular path around the sun over the course of one year express the speed of the
a car travels at 900kmh for a distance of 500m calculate the angular speed and the number of rotations of the tires if
in astronomy a parsec pc is dened as the distance at which an object with a size of 1 astro- nomical unit au would
in a paper chromatography experiment we put our chromatograms in a few ml of a acetoneconcentratedhcldistilled solution
a 100 kg mass is acted upon by a force given by 16 5x -4x2i where x is measured in metersa how much work is done by
a block of wood of mass m1 100 kg slides to the right on a frictionless horizontal table with a speed of 3000 ms it
suppose in a paper chromatography experiment you discovered that two different ions gave the same rf value what could
the drivers of two carss in a demolition derby are at rest 100 m apart a clock on the billboard reads 121700 at the
a fully charged capacitor with a voltage of 120 v is discharged through a resistora what is the voltage across the
how would the geometry of the product isoborneol change oh in an endo or exo position if all the methyl groups of
the magnetic field produced by an mri solenoid 27m long and 17m in diameter is 19t find the magnitude of the magnetic
slamming on the brakes a driver decelerates her car from 250 ms to 15 ms in 35 s find her average speed assuming the
an astronaut who is repairing the outside of her spaceship accidentally pushes away a 967-cm-long steel rod which flies
the drill bit of a variable-speed electric drill has a constant angular acceleration of 315 rads2 the initial angular
why does red cabbage take on a red coloration in a vinegar and oil salad dressing a purple coloration when fresh a blue