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a charge q1 on the y-axis produces afield of magnitude 16 nc at the originand a charge q2 on the x-axis producesa field
compare and explain the relative melting points of the following in terms of intermolecular forces and coulombs law he
a nonuniform horizontal bar of mass is supported by two massless wires against gravity the left wire makes an angle
calculate ph of a solution of l-glutamic acid in which the ionic species with net charge-1 is 5 times greater than that
a pilot flies her route in two stright-line segmentsthe displacement vector a for the first segment has a magnitude of
list and draw all types of noncovalent interactions charge-charge electrostatic hydrogen-bonding hydrophobic reactions
a heat engine working between 3400oc and 6300oc takes in 8277times106 j of heat and delivers 2100times106 j of work per
calculate the delta phdelta degrees celcius for the ph 80 tris solution how accurate was the use of the ph strip in
the land speed record of 139 ms 31 mih for birds is held bythe australian emu an emu running due south in a straight
a 300 turn solenoid with a length of 35cm and a diameter of 10cm carries a current of 0234a an electron inside the
if a heat engine absorbs 9400 j of heat from the hot reservoir and exhausts 3300 j of heat to the cold reservoir what
in a specific heat experiment 1840 grams of aluminum c9130 jkgk at 1000degc is mixed with 480 g water at 200degc
a typical nuclear reactor generates 1000 mw1000mjs ofelectrical energy in doing so it produces 2000 mw ofwaste heat
a mineral of a certain metal is a binary compound with sulfur analysis shows that a 1815 g sample of the mineral
a refrigerator does 1350 j of work to remove 5400 j of heat from its cold compartement what is the refrigerators
a metal oxide with the formula mo2 contains 2123 oxygen by mass type the symbol for the element represented by m in the
in the hall-heroult process anhydrous aluminum oxide is reduced to aluminum according to the chemical equation2 al2o3 s
a heat engine absorbs 470 kj and exhausts 360 kj of heat each cycle calculate its efficiency what is the work done per
a sky-diver jumps out of a plane and achives terminal velocity before opening his parachuteexplain what is meant by the
whats the reaction between acetanilide and water i want to include this in my lab report regarding purification of
find the absolute uncertainty of the following calculation and round the answer to the proper number of significant
a 7800 kg boxcar traveling at 180 ms strikes a second boxcar at rest the two stick together and move off with a speed
a uniform steel beam has a mass of 490 kg on it is resting half of an identical beam what is the vertical support force
two forces act on a 55 kg object one force has magnitude 65 n direction 59 degree clockwise from the positive x-axis