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a 400-kg piano slides 36 m down a 28 degree incline and is kept from accelerating by a man who is pushing back on it
at large distances a bar magnet acts like the magnetic dipole created by a current carrying loop imagine such a magnet
a thin stream of water flows smoothly from a faucet and falls straight down at one point the water is flowing at a
a round pipe of varying diameter carries petroleum from a wellhead to a refinery at the wellhead the pipes diameter is
calculate the h3o of the following polyprotic acid solution 0330m h3po4 and 0390m
you spray your sister with water from a garden hose the water is supplied to the hose at a rate of 0137 liters per
a student in an undergraduate physics lab is studying archimedes principle of bouyancy the student is given a brass
the ph of a certain solution is 45 what is the concentration of haq ions in the solutiona 316 x 10-5 mb 316 x 104 mc 45
bowling balls can be made from a variety of substances and are required to have a circumference of roughly 270 inches
a sample of an ideal gas has a volume of 00100 m3 a pressure of 100 103 pa and a temperature of 300 k what is the
100 ml of 0150 m acid h2a are mixed with 100 ml of 01600 m naoh calculate the h of the resulting solution at
bowling balls are roughly the same size but come in a variety of weights given its official circumference of roughly
200 ml of 0150 m acid ha are mixed with 100 ml of 00800 m naoh calculate the titration constant kt of the resulting
have you ever listened for an approaching train by kneeling next to a railroad track and putting your ear to the rail
how much carbon dioxide in kilograms is produced upon the complete combustion of 291 l of propane approximate contents
a 2000 kg car is traveling at 150 ms down a long mountain grade of 20 the mountain road is 50 km long the heat
a 16 ounce specialty coffee drink contains 200 mg caffeine if all the caffeine is extracted and dissolved in an equal
200 joules of heat flows into a 35 g sample if the temperature increases by 10degc then what is the heat capacity of
the capacitance of three capacitance are 10 f 15 f and 20f connected in series of combination by a copper wire what is
if the temperature of 2000 moles of an ideal gas is increased by 50degc then what is the increase in the total internal
if you are given a beers law plot and a value for the absorbance of an unknown solution how will you determine the
a childs toy consists of a piece of plastic attached to a spring in the figure below the spring is compressed against
nitrous oxide gas is used by some denatl practitioners as a anesthetic nitrous oxide can be produced in small
a 051 kg mass at the end of a spring vibrates 90 times per second with an amplitude of 018 ma determine the velocity
calculate the concentrations of the protonated and unprotonated forms of bromothymol blue in 100 ml of a ph 81 buffer