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a bartender slides a drink along a bar to a customer seated 3 metres away in the positive x direction due to friction
a capacitor has a very large capacitance of 10 f the capacitor is charged by placing a potential difference of 2v
a paddle wheel frictionally adds thermal energy to an ideal monatomic gas in a sealed insulated container the paddle
an electrical outlet for an electric stove provides a potential difference of 240 v rms find the amplitude of the
a long thin rod of mass m 2 kg and length l 75 cm is free to rotate about its center as shown two identical masses
an 81-kg person puts on a life jacket jumps into the water and floats the jacket has a volume of 31 10-2 m3 and is
a superball with a mass m 616 g is dropped from a height h 224 m it hits the floor and then rebounds to a new height
a construction crew pulls up an 875-kg load using a rope thrown over a pulley and pulled by an electric motor they lift
a spring gun is made by compressing a spring in a tube and then latching the spring at the compressed position a 487-g
a 460 g bullet moving at 616 ms strikes a 670 g wooden block at rest on a frictionless surface the bullet emerges
the speed of the fastest-pitched baseball was 410 ms and the balls mass was 145 ghow many joules of kinetic energy did
if the threshold frequency for platinum is 13x1015 s-1what is the range of frequencies that do not eject an
1 how much heat is produced in burning 9 mol of ethylene c2h4 under standard conditions if reactants and products are
you titrate 250 ml of 0110 m nh3 kb 176 x 10-5 with 0100 m hcl what volume of hcl is required to reach the equivalence
measuring the speed of sound a student investigator is measuring the speed of sound by looking at the time for a brief
a 0050 m h2s solution contains 019 m nicl2 and 035 m hgno32 what ph is required to precipitate the maximum amount of
to what temperature must a substance be heated so that its thermal energy is about 9 kjmol express your answer to the
what is the approximate thermal energy in kjmol of molecules at 0deg c express your answer to the nearest 01
a potters wheel having a radius 053 m and a moment of inertia of 149 kg middot m2 is rotating freely at 46 revmin the
a bioengineer preparing cells for a cloning experiment bathes a small piece of rat epithelial tissue in a tris buffer
at some instant the velocity components of an electron moving between two charged parallel plates are vx 190 105 ms
suppose solute a has a distribution coefficient of 10 between water and diethyl ether demonstrate that if 100 ml of a
a 500-ml volume of 015 m is titrated with 025 m koh calculate the ph after the addition of 200 ml of
a find the of nickel in the coin solution molority of nickel is 8469 density of coin solution as 100gmlb find the of
an unknown element of mass 0250 kg initially at 950degc is dropped into 0400 kg of water c 4186 jkgbulldegc at 200degc