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you and your friend each drive 500 km you travel at 900 kmh your friend travels at 95kmh how long will your friend be
a 252g bullet moving at 290 ms enters and stops in an initially stationary 250 kg wooden block on a horizontal
a bicycle with a mass of 20 kg drives over a semi-circular of radius 182 meters if the bicycle is moving at 94 ms at
the osmotic pressure of an aqueous solution at 300 k is 120 kpa calculate the freezing point of the solution kf186 k kg
lead is a toxic metal that affects the central nervous system a pb contaminated water sample contains 00012 pb by mass
a yo-yo with a mass of 5 kg is attached to a rope and is swung at constant speed around a vertical circle if the yo-yo
the drawing shows a bicycle wheel resting against a small step whose height is h 0108 m the weight and radius of the
the final temperature of an experiment using a coffee cup calorimeter is 160 degrees celsius the mass of nano3 used is
a 20kg ball and a 45kg ball each moving at 090ms undergo a head-on collision the lighter ball rebounds opposite its
sterling silver is 925 silver by mass with a density of 103 gcm3 if a cube of sterling silver has a volume of 270 cm3
the complete conversion of 2-phenylacetic acid to ethyl-2-phenylacetate in this experiment is the result ofa ethanol
two 720- hockey players skating at 700 collide and stick together if the angle between their initial directions was 135
two groups of canoeists meet in the middle of a lake after a brief visit a person in canoe 1 pushes on canoe 2 to
how much ethylene glycol must be added to your cars cooling system along with 50 kg of water to obtain a freezing
gliders with masses 0150kg and 0220kg are at rest on an air track with a spring between them the spring is compressed
if the hour and minute hands of an analog clock are aligned at 0000 midnight at what time will they next realign give
what is the boiling point of a solution containing 150 g of urea in 0500 l of water the boiling temperature of pure
what volume of 0812 m hcl is required to titrate 145 g of naoh to the equivalence
a sled of mass m is given a kick on a frozen pond the kick imparts to it an initial speed of 250 ms the coefficient of
what is the concentration of 50 ml of a solution of naoh if 25 ml of hcl 01m are needed to reach the equivalence point
what are the vant hoff factors of c2h5oh no dissociation nacl full dissociation na2co3 full dissociation and h2so4 64
in an integrated circuit the current density in a 190 540 gold film is 760times105 what is the current in the
how would you prepare 350 ml of a 01 m solution of naoh from pure pellets from 95 pure
concentrated sulfuric acid has a density of 184 gcm3 and is 95 by weight h2so4 what are the molarity and the molality
an underwater scuba diver sees the sun at an apparent angle of380degfrom the vertical what is actual direction of the