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calculate the kinetic energy that the earth has because ofa its rotation about its own axis andb its motion around the
if you have a sample of a radioactive substance and you measure 25mci of activity on the day it arrives it sits around
a 175 kg block slides on a rough horizontal surface the blockhits a spring with a speed of 186 ms and compresses it a
acetylsalicylic acid hc9h7o4 is a monoprotic acid commonly known as aspirin a typical aspirin tablet however contains
calculate the mass of the precipitate formed when 227 l of 00820 m baoh2 is mixed with 306 l of 00664 m
the following data were obtained from experiments to find the molecular formula of procaine a local anesthetic which
the drawing shows a circuit that contains a battery two resistors and a switch what is the equivalent resistance of the
we all know that a day at the beach leaves us worn-out assuming our body looses its heat energy to the water and on a
an elevator cab and its load have a combined mass of 1600kg find the tension in the supporting cable when the cab
a mixture of calcium carbonate caco3 and barium carbonate baco3 weighing 54 g reacts fully with hydrochloric acid hcl
two boxes sit side by side on a smooth horizontalsurface the lighter box has a mass of 52 kg the heavier box hasa mass
a 40 kg girl and an 84 kg sled are on the fictionless ice ofa frozen lake 15m apart but connected by a rope of
a chemist wants to resolve a particular amine but she has only meso-tartaric acid on hand she scans the lab inventory
a 85 watt light bulb uses anaverage power of 85 w when connectedto an rms voltage of 120 va what is the resistance of
imagine a person accidentally swallows a drop of liquid oxygen which has a density of 1149 gml assuming the liquid drop
consider a bead of mass m that is free to move on a thincircular wire of radius r the bead is given an initial speedvo
coasting along at 747 ms a 730 kg bicyclist on a 706 kgbicycle encounters a small hill if the speed of the bicyclist
the motor of a ski boat produces a power of 38000 w to maintain aconstant speed of 153 ms to pull a water skier at the
you are given a sample of metal and have been told that it has a bcc structure and atomic radius of 136aring youve
a rectangular loop of wire is sitting next to a straight wireas shown in the figure below there is a current of i 213
a draw the skeletal structure of meso-35-dibromo-35-dimethylheptane show one wedge bond one dashed bond and two sticks
the vibrational frequency of the icl molecule is 115 x 1013 s-1 for every million 1x106 molecules in the ground
a spinning ice skater speeds up by pulling her hands to theside of her body approximate the ice skater by a cylinder
a sample of a gas has a pressure of 820 torr at 283degc to what celsius temperature must the gas be heated to triple