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in a youngs double-slit experiment the 7th dark fringe is located 0029 m to the side of the central bright fringe on a
consider a steel container that can hold a maximum of 02 m3 of ethanol at anbsp temperature of 30degc if the
if 0208g of an unknown salt of oxalate ion requires 25ml of 002 m mno4- solution calculate the molar mass and write
a motorcycle and 580 kg rider accelerate at 28 ms2 up a ramp inclined 10deg above the horizontala what is the magnitude
combining aqueous solutions of bai2 and na2so4 affords a precipitate of baso4 which ions isare the spectator ions in
a wheel is disconnected from a motor and come to rest from 15000 rpm because of a 100 mmiddotn frictional torque if the
the length of a simple pendulum is 077 m and the mass of the particle the bob at the end of the cable is 025 kg the
how much ammonia in a lab at 22 degree celcius would be necessary to make 10 g of urea if the yield is know to be less
assume that a 900 w light bulb radiates all its energy as a single wavelength of visible lighta estimate the electric
a wooden raft has a mass of 90 kg when empty it floats in water density 1000 kgm3 with 67 of its volume submerged what
100 ml of 0150 m acid ha are mixed with 100 ml of 00800 m naoh calculate the titration constant kt of the resulting
a 059 kg object connected to a light spring with a force constant of 212 nm oscillates on a frictionless horizontal
the value of delta e for a system that performs 213 kj of work on its surroundings and loses 79 kj of heat is
the potential energy of a 5x10-6c charge decrease from 017j when it is moved from point a to point b what is the change
an 18 mm wide diffraction grating has rulings of 710 lines per mm light is incident normally on the grating
a sample of aluminum metal absorbs 986j of heatupon which the temperature of the sample increases from 232 c to 395 c
assume that an esterification reaction is done using 010 moles of a carboxylic acid and 1 moles of an alchohol what is
potassium hydroxide is used to precipitate each of the cations from their respective solution determine the minimum
a radar transmitter contains an lc circuit oscillating at 210 1010 hza for a one-turn loop having an inductance of 360
a uniform plank 100 m long and weighing 200 n is supported horizontally by a brick at one end and an egg at the other a
a certain star is 980 light-years awayhow long would it take a spacecraft traveling 095c to reach that star from earth
an object is placed 100 cm in front of a lens of focal length 20 cm a second lens is placed 35 cm beyond the first this
a 158m--long fm antenna is oriented parallel to the electric field of an em wavehow large must the electric field be to
a large flask is evacuated and weighed filled with argon gas and then reweighed when reweighed the flask is found to
what is the wavelength in nanometers of the light emitted when the electron in a hydrogen atom drops from the energy