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a small body of mass m can move on an inclined plane which forms an angle alpha 10 degrees with the horizontal the
an unknown element is found to have an absorption spectrum with lines at 30 70 and 90ev and its ionization energy is
an isolated capacitor of unknown capacitance has been charged to a potential dissimilarity of 200 v when the charged
a 200 uf capacitor is charged with a 1500 v power supply then disconnected from the power and connected in series with
a 120 uf capacitor is charged to a potential of 50-v and then discharged during a 175 ohm resistor how long does it
the plates of a parallel plate capacitor are separated by 5mm the electric field among them is 42 x 105 vm a proton is
a sound wave traveling at 342ms is emitted with the foghorn of a tugboat an echo is heard 380 s later how far away is
two stationary point charges 300 nc and 200 nc are separated by distance of 500 cm an electron is released from rest at
assume that you are given the choice among two life preservers that are identical in size the first a light one filled
a homogeneous bar of length l can rotate on a horizontal frictionless plane around a vertical axis passing during one
at amusement parks there is a popular ride where the floor of a rotating cylindrical room falls away leaving the backs
a rock is thrown directly upward 563 meters off a roof and misses the roof on the way backnbsp it strikes the ground 4
a coin is placed near one edge of a book lying on a table and that edge do the book is lifted until the coin now slips
a railroad whistle is sounded an echo is heard 50 seconds later if the speed of sound is 343ms how far away is the
two canoes are 10 m apart on a lake each bobs up and down with a period of 40 seconds when one canoe is at its highest
the block in the figure has a mass of 15kg the top angle the incline is 37 degrees and there is no friction on the
carotenoids present in all organisms capable of photosynthesis extend the range of light absorbed by the organism they
a buffer is made from benzoic acid and sodium benzoate how many grams of the acid would you have to mix with 144 g of
the salts of calcium sulfate magnesium carbonate lead ii bromide calcium chloride and silver nitrate are all added to a
a 01329 g sample of solid magnesiumis burned in a constant-volume bomb calorimeter that has a heat capacity of 1769
a solution is made by diluting 050 mol naclo to a volume of 30 l with water explain what is the ph of the solution kbof
state a net ionic equation for the neutralization reaction of ammonium chloride as well as sodium hydroxide identify
if oxygen gas were collected over water at 20 degrees c as well as the total pressure of the wet gas were 670 mm hg
the vapor-pressure lowering upon forming solution can be utilized for determining molecular weight of nonvolatile
a 04357 gram sample of impure barium chloride dehydrate weighed 03587 grams after it was dried at 200 degc for two