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a 51kg woman runs up a flight of stairs in 50s her net upward displacement is 50m approximately what average power did
which of the following atoms with the specified electronic configuration would have the lowest first ionization energy
4- a student measured the diameter of a sphere and determined the average value his measyrements are 517cm 516 cm cm
the train passes point a with a speed of 30 ms and begins to decrease its speed at a constant rate of at -025 ms2
a 20kg projectile if fired with initial velocity components vox 30 ms and voy 40 ms from a point on the earths surface
which two ions have the same electron configuration in the ground state a rb and ca b ba2 and i- c se2 and i- d fe2 and
tarzan has foolishly gotten himself into another scrape with the animals and must be rescued once again by jane the 600
which of the following underlined items is not an intensive property a a chemical reaction reqyuires 300g of oxygen b
testing the run off water of pna polynuclear aromatic compounds which analytical method you will use in each case
a very long solenoid of circular cross section with radius r 40 cm is centered on and has its length parallel to the z
what are the major products of 1methylcyclopentene reacts with br2 and ccl4 can someone illustrate it with drawings is
a child and a sled with a combined mass of 50 kg slide down a frictionless slope if the sled starts fro rest and has a
two equally charged spheres of mass 10 g are placed 20 cm apart when released they begin to accelerate at 655ms2 what
a quantity of c2h4 gas occupies a volume of 100l at 37c and a pressure of 720 mm hg calculate the weight in grams of
when a compound x which contains only s c and h is burned one volume of x yields 1 volume of sulfur dioxide 3 volumes
what is the net upward force on an airplane wing of area 219 m2 if the speed of air flow is 293 ms across the top of
an element x whose atomic weight is 227 is a mixture of two isotopes with atomic masses of 241 and 225 respectively
two capacitors one 120 microf and the other of unknown capacitance are connected in parallel across a battery of emf 90
a 0410-kg ball is dropped from rest at a point 430 m above the floor the ball rebounds straight upward to a height of
the following data were collected for the reaction of tbutylbromide ch33cbr with hydroxide ion at 55 degrees celsius
a mixture of 100 mol no 050 mol h2 100 mol h2o is placed in a 100 liter vessel and allowed to reach equilibirum no0062
how many liters of dry carbon dioxide gas measured at standard conditions will be evolved when 400 ml of a 020 m
a 70 kg ball with the initial velocity of 7i5jms collides with a wall and rebounds with a velocity of -7i5jms what is
two equal positive charges q20microc are located on the x-axis one at03m and the other at -03m a third charge q40microc
a mixture of sodium bromide and sodium iodide weighs 1620 g when treated with excess silver nitrate it yields a mixture