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a daredevil decides to jump an canyon itswalls are equally high and 10 m apart he takes off by driving amotorcycle up a
a mole of hydrogen atoms contains 602x1023 atoms a section of outer space contains 25 atoms how many moles of hydrogen
a vertical electric field of magnitude 100 x 104 ncexists above the earths surface on a day when a thunderstorm
describe the lysing process that occurs when performing the slow freeze quick thaw procedure for preparing a crude
the pressure in ideal gas is cut in half slowly while being kept in a container with rigid walls in the process 265 kj
a horizontal force of 210n is exerted on a 20 kg discus as itrotates uniformaly in a horizontal circle at arms length
a sprinter set a high school record in track and field running 2000 rm m in 207 s what is the average speed of the
a sample of naphthalene which should be pure white was found to have a grayish color after the usual purification
a 180 w light bulb is plugged into a standard 110 voutlet how much does it cost per month 31 days to leavethe light
what is the maximum energy that a free electron initiallystationary can acquire in a collision with a photon of energy
how can you decide whether an observed property of matter is a physical or chemical
a 200 kg block is held in equilibrium on an incline of angletheta 60deg by ahorizontal force vector f applied in the
a 864-ppm 1 ppm 1 mglsolution of fescn2 has a transmittance of 0295 when measured in a 100-cm cell at 580 nm calculate
the dipole moment of a water molecule is62times10minus30 cmiddotm what is the electric potentialdue to this dipole at a
a box is sliding with a speed of 450 ms on ahorizontal surface when at point p it encounters a roughsection on the
a car with a mass of 1000kg is traveling with a velocity of12msthe friction due t air resistance is 750na what is the
how many grams of potassium chlorate decompose to form potassium chloride and 460 ml o2 at 128degc and 684
a sample of air contains 7650 nitrogen 2270 oxygen 005 carbon dioxide and 075 argon by volume how many molecules of
a 376 ml container holds 0146 g of ne and an unknown amount of ar at 35degc and a total pressure of 630 mmhg calculate
the ammonia molecule nh3 has adipole moment of 48e-30 cmiddotm ammonia molecules in the gasphase are placed in a
when 0633 l of ar at 120 atm and 227degc is mixed with 0185 l of o2 at 501 torr and 127degc in a 400 ml flask at 27degc
the mole fraction of kno3 in an aqueous solution is 0194 the density of the solution is 10627 gml calculate the
a circular steel plate of radius 010 m is cooled from350oc to 20oc by what percentage does the plates area
1 what is the difference between the terms electric potential and voltage give an example2 how can the knowledge of
what intermolecular forces account for the difference in boiling point for ethyl acetate and butyl acetatei know ethyl