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red light travels at 207times108 ms in a particular type of oil what is the index of refraction for red light in the
write the total and net ionic equations for the reaction of baso4 dissociation and calculate the trial ksp for the
assume this asteroid has the shape of a sphere a rock sitting on the surface of the asteroid has a weight of 100
predict whether a precipitation reaction will occur when aqueous solutions of the following substances are mixeda mncl2
suppose you take a 20times102ohm resistor and a 040 h inductor and make a series circuit with a voltage source that has
two coherent sound waves have intensities of 0030 wm2 and 0092 wm2 where you are listeninga if the waves interfere
concentrated sulfuric acid is used as a catalyst for the esterification of acetic acid in the preparation of isopentyl
a 16-m-long string fixed at both ends vibrates at resonant frequencies of 720 hz and 960 hz with no other resonant
assume that you have an aqueous solution of an unknown salt treatment of the solution with dilute naoh na2so4 and kcl
two packing crates of masses 100 kg and 500 kg are connected by a light string that passes over a frictionless pulley
a substance has an extinction coefficient of 5 x 105 l cm-1 mol-1 a concentrated solution of this substance has an
1g of acetanilide was reacted with 045g of sodium bromate and 13mmol of hbr what is the theoratical yield of the
in a certain chemical process a lab technician supplies 231j of heat to a system at the same time 670 j of work are
in the days before compact discs and mp3 players ancient history music was recorded in scratches in the surface of
calculate the ph of 0510 l of a 0220 m nh4cl and 0220 m nh3 buffer before and after the addition of the following
the speed of sound in air at room temperature is 339 msa what is the frequency of a sound wave in air with wavelength
in a series r-l-c circuit r 460 ohm l 0390 h and c 120times102 mfa what is the resonance angular frequency of the
a cannon tilted up at a 30deg angle fires a cannon ball at 90 ms from atop a 16 m high fortress wall what is the balls
a student places her 350 g physics book on a frictionless table she pushes the book against a spring compressing the
the carbon dioxide will be generated by reacting solid sodium bicarbonate nahco3 with a solution of acetic acid ch3cooh
consider a rocket which has two combustion rates 1 4 kgs and 2 8 kgs the relative speed of the exhaust gas is 90 ms
a 50 kg skateboarder wants to just make it to the upper edge of a quarter pipe a track that is one-quarter of a circle
in an experiment temperature of hydrochloric acid hcl1020m solution is 234 degrees celcius the temperature of sodium
one billiard ball is shot east at 30 ms a second identical billiard ball is shot west at 10 ms the balls have a
when liquid water at 0degc and 1 atm is converted to ice at 0degc and 1 atm 601 kj mol-1 of energy is released as heat