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suppose that charges on a dipole antenna oscillate slowly at a rate of 1 cycles and the antenna radiates
two acid-base reactions are given below of the three reaction arrows presented in each reaction select the arrow via
a very long solenoid with a circular cross section and radius r 710 cm with n 150e4 turnsm has a magnetic energy
what volume of a 01 m clo- solution reacts stoichiometrically with a 10 ml solution of 02 m cro2- use the reaction 2
consider the transitions 3d --ampgt2p in hydrogen calculate the possible energies of emitted photons taking into
a man walks westward on ship with a speed of 4kmhr the ships propeller drives it 15kmhr south what is the actual speed
to identify a diatomic gas x2 a researcher carried out the following experiment she weighed an empty 48- bulb then
1285g sample of na2so4 is exposed to the atmosphere and found to gain 0393g in mass what is the percent by mass of
rock 1 is thrown straight down from a tower rock 2 is thrown straight up from the same height at the same speed as rock
a daredevil is shot out of a cannon at 450deg to the horizontal with an initial speed of 260 ms a net is positioned a
065 of sodium hydroxide naoh pellets are dissolved in water to make 25l of solution what is the ph of this
a source of electromagnetic waves radiates power uniformly in all directions at a single frequency at a distance of 650
the enthalpy of activation of a first order reaction is 123kjmol the rate constant at 80 c is 173x10-2 s-1 what is the
an industrial laser is used to burn a hole through a piece of metal the average intensity of the light is save
liquid butane c4h10 the fuel used in many disposable lighters has delta hfinal-1475 kj and a density of 0579 gml use
at the surface of the earth the sun delivers an estimated 143 kwm2 of energy suppose sunlight hits a 163 m by 333 m
describe the difference between the following and list any particular advantage possessed by one over the other
a rod of 20-m length and a square 20 mm 20 mm cross section is made of a material with a resistivity of 60 10-8 m
how many grams of aspirin were lost in the washing process you used to purify your product assume you used 50 ml of
a 220 kg bucket containing 100 kg of water is hanging from a vertical ideal spring of force constant120 nm and
this procedure has actually been used to weigh astronauts in space a 425-rm kg chair is attached to a spring and
in general chemistry lab 2 devising a reduction potential table why was it necessary to do step 3 of the laboratory
a boy drops a stone vertically down from the margin of a 24-m cliff at the same moment his friend at the bottom of the
how much heat is required to boil 485g of water at its boiling point express your answer numerically in kilojoules
you are titrating 1000 ml of 00200 m fe3 in 1 m hclo4 with 0100 m cu to give fe2 and cu2 using pt and saturated ag