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a car is designed to get its energy from a rotating flywheelwith a radius of 150 m and a mass of475 kg before a trip
quantitative analysis of an unknown organic compound showed it to contain only c h and cl combustion analysis of a
the surface of the drum of a laser printer is negatively chargedexcept in certain print black regions such as
a vertical cylinder has a 10kg frictionless piston 5cm in radius inside the cylinder are 10 mols of helium at 2 bar and
a skier of mass 70 kg is pulled up a slope by a motor drivencablea how much work is required to pull him 60m up a 30
two rockets are each 1000m long in their rest frame rocket 1traveling at 9c relative to earth in over taking rocket
a solution has a hydroxide ion concentration of 954 x 10 to the neg 5 m what is the hydronium ion concentration step by
a 450 kg girl is standing on a 159 kg plank the plank originally at rest isfree to slide on a frozen lake which is a
during a storm a tree limb breaks off and comes to rest across a barbed wire fence at a point that is not in the middle
four ice cubes at exactly 0 circ rmc having a total mass of 535 g are combined with 110 g of water at 77circ c in an
the heaviest flying bird is the trumpeter swan which weighsin at about 38 pounds at its heaviest what is the weight in
an electron moves with a speed of 50 x 104ms perpendicularto a uniform magnetic field of 20t what is the magnitude
if 53 g barium chloride is reacted with excess sodium sulfate how many grams of barium sulfate are
for a research project a student needs a solenoid thatproduces an interior magnetic field of 00300 t she decidesto use
how much energy is required to break a single ne-21 nucleus into protons and neutrons if the nucleus has a mass of
a wire has a resistance of 292 it is melted down and from the samevolume of metal a new wire is made that is 3 times
an especially violent lightning bolt has an average current of 225x 103 a lasting 0271 s how much charge is delivered
what mass of na2cro4 is required to precipitate all the silver ions from 960 ml of a 0650 m solution of
a baseball is bunted down the third-base line leaving the batfrom a height of 0850m with an initial velocity of 400ms
a 50 a current is set up in a circuit for 60 min by a rechargeable battery with a 60 v emf by how much is the chemical
the half-life of carbon-14 is 5715 years if an animal bone contains 200 grams of carbon-14 when the animal dies how
a circular rod of length 25cm and diameter 8mm is made of 1045grade steel a calculate the stress and strain in the rod
an airplane propeller is 208 m in length from tip to tipwith mass 117 kg the propeller is rotating at 2400 revmin
a tennis ball is struck at the base line of the court 133 m from the net the ball is given an initialvelocity with a
the electric field just above the surface of thecharged hollow drum of a photocopying machine has a magnitude e of30e5