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there is a charge of -3e locked down at a point on a table 15 meters away a charge of 3e is released from a scientists
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whats the melting point would be if you mixed acetanilide with 10 by weight of naphthaleneacetanilide mp 1135-114
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a 1250 w radiant heater is constructed to operate at 240 va what will be the current in the heaterab what is the
calculate the osmotic pressure at 20c of the solution 0050m c12h22o11 assume complete dissociation for an ionic
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an unknown resistor is connected between the terminals of a 750 v battery energy is dissipated in the resistor at the
a reverse osmosis unit is used to obtain drinkable water from a source that contains 0570 g nacl per liter what is the
a common flashlight bulb is rated at 030 a and 28 v the values of the current and voltage under operating conditions if
the molar mass of compound is measured to be 334 352 341 339 gmol in four trials what is the avg molar mass amp
a crate is hanging from a rope which is attached to a metal ring through which a second rope runs what is the angle if
although the viscosity varies over a factor of more than two in the series from hexane to nonane the surface tension at
light travels at a speed of about 30 108 msa how many miles does a pulse of light travel in a time interval of 01 s
the concentrationof the alkane c20h42 fm 28255 in a particular sample in rain water is 02ppb assume that the density of
show the reaction mechanism when 2-methyl-2-butanol sulfuric acidh2so4 and water are in a
a copper cus electrode is immersed in a solution that is 100 m in ammonia nh3 and 100 m in tetraamminecopperii cunh342
plants absorb light from the sun and convert the light into chemical energy which drives the reaction that produces
capacitors c1 565 microf and c2 275 microf are charged as a parallel combination across a 250 v battery the
the current indoor world record time in the 200-m race is 1992 s held by frank fredericks of namibia 1996 while the
a human being can be electrocuted if a current as small as 50 ma passes near the heart an electrician working with
a wire 251 m long and 600 mm in diameter has a resistance of 150 m a potential difference of 280 v is applied between
a motorist drives north for 360 minutes at 670 kmh and then stops for 150 minutes he then continues north traveling 130
a pintildeata of mass 350 kg is attached to a string tied to a hook in the ceiling the length of the string is 078 m
the cheetah can reach a top speed of 114 kmh 71 mih while chasing its prey in a short sprint a cheetah starts from rest