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a a bungee jumper with mass 520 kg reaches a speed of 135 ms moving straight down when the elastic cord tied to her
maleic anhydride reacts with ethylene glycol to produce an alkyd resin draw the structure of the condensation polymer
a goldfish bowl is spherical 8 cm in radius a goldfish is swimming 30 cm from the wall of the bowl where does the fish
part ahow many moles of solid sodium fluoride should be added to 50 l of a saturated solution of barium fluoride baf2
light of wavelength 500 nm is incident on a thin sheet of plastic film n 150 in air what is the thinnest the sheet can
calculate the value of the reduced mass of a hydrogen atom take the masses of the electron and proton to be
light is traveling in an optical medium with a refractive index of 155 and is incident on an interface with air what is
a soap bubble with index of refraction 133 is floating in air if the thickness of the bubble wall is 114 nm what is the
what characteristic absorption bands would you expect to find the infared spectrum of
a wire of thickness d 5 mm is tightly wound 200 times around a cylindrical core to form a solenoid a current i 01 a
400 ml if 0100m t-bucl are mixed with 400ml of 00100 m naoh and 200 ml of distilled watera calculate the initial
it is desired to project an image of an object four times actual size with a lens of focal length 20 cm what object
after doing ka calculations you may wish you had an aspirin aspirin is a weak acid with ka327 x 10-4 for the reaction
calculate the equilibrium concentrations of h3o acetate ion and acetic acid in a 20-m aqueous solution of acetic acid
the nernst equation is used to predict the impact of concentration on the cell potential what value of slope does the
a space traveler weighs 631 n on earth what will the traveler weigh on another planet whose radius is 2 times that of
determine the percentage concentration by volume if a 600 ml bottle of vinegar contains 300 ml of acetic
what is the ph of a 13 10-7 m solution of benzoic acid at 25c pka of benzoic acid is 419 at 25c might have to take
to hoist himself into a tree a 720-kg man ties one end of a nylon rope around his waist and throws the other end over a
a thin film of oil with index of refraction 136 is located on a smooth wet pavement when viewed perpendicular to the
a buffer containing 042 m base b and 028 m of its conjugate acid bhhas a ph of 886 what is the ph after 00020mol of hcl
in the drawing the weight of the block on the table is 422 n and that of the hanging block is 185 n ignoring all
a helicopter flies over the arctic ice pack at a constant altitude towing an airborne 193-kg laser sensor which
use a maxwell relation to derive the relation deltasdeltavt nrv from da -sdt - pdv and