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a sample of moon rock was examined by mass spectroscopy merely 1147 of the original 4019k remained the rest had decayed
an object has a weight of 0882 newton it is suspended from a scale which reads 0735 newton when the piece is submerged
the solubility of mnso4 in water at 20c is 70g per 100ml of water is a solution at 20c that is 422m in mnso4 is best
a pair of narrow parallel slits separated by a distance of 0221mm is illuminated by the green component from a mercury
the combustion of 572g of butane c4h10 produces 1034g of co2 define what is the percent yield of the reaction presume
illustrate the retrosynthetic analysis and write the reactions required to synthesize the following compound3s
define why gel electrophoresis is important in recombinant dna technology as well explain how dna molecules can be
water at the top of niagara falls has a temperature of 110degc if it falls a distance of 700 meter and all of its
explain what are the species present in a solution of sulfuric acid specified that ka1 is very large and ka2
a chemist required to produce 70200 kilograms of acetylsalicylic acid c9h8o4 explain how many liters of acetic
a cube of solid aluminum has a volume of 100 m3 at 20 degree celsius find what temperature change is required to
a 015 kg marble moving to the right at 4ms has a head on elastic collision by a 045 kg marble sitting at rest on a
an elevator is able to raise 1000 kilogram to a height of 20 meter in10 seconda calculate how much work does the
a 1000-w motor power a hoist used to lift cars at a service stationa determine how much time would it take to raise a
an astronomer is making an observation of a new-discovered galactic object part of this observation is the study of the
in a very big closed tank the absolute pressure of the air above the water is 641 x 105 pa the water leaves the bottom
the intensity of the sound from a certain source is measured by two observers located at different positions along a
a rope is wrapped around a wheel of diameter 50 centimeter the wheel is mounted with frictionless hearings on an axle
a cart on a 59 meter long air track moves with a speed of 065 ms bumpers at either end of the track cause the cart to
a long solenoid of length 8m with a cross-sectional area of50x10 -5 m2 contains a total of 52000 turnsnbspa compute the
thick vertical iron pipe has inner diameter of 0065 meter an aluminum disk heated to a temperature of 85oc has a
assume you are part of a team that is trying to break the sound barrier with a jet-powered vehicle which means that it
a plane lands with a speed of 510ms each wheel of the plane has a radius of 125 meter and a moment of inertia of
a quarterback takes the ball from the line of scrimmage runs backwards for 50 yards and then runs sideways parallel to
assume that you release a small ball from rest at a depth d below the surface in a pool of water and the ball rises and