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light with a wavelength of 640 nm passes through two slits and forms an interference pattern on a screen 875 m away if
a two-slit pattern is viewed on a screen 110 m from the slits if the two third-order minima are 210 cm apart what is
a simple pendulum consists of a ball connected to one end of a thin brass wire the period of the pendulum is 320 s the
a two 69 g ice cubes are dropped into 202 g of water in a thermally insulated container if the water is initially at
the a string on a cello vibrates in its first normal mode with a frequency of 220 hz the vibrating segment is 650 cm
you want to build a raft that can hold you 86 kg plus some supplies 41 kg for a long trip you decide to make the raft
a suitcase full of platinum sits at the bottom of a lake a recovery diver finds that as he lifts the suitcase to the
a car of mass 1490 kg rests on a hydraulic lift with a piston of radius 026 m that is connected to a second piston of
the surface of the sun has a temperature of about 5800 k the radius of the sun is 696 108 m calculate the total energy
a 7 kg bowling ball moving at 15 ms hits a 1 kg pin at rest the ball leaves at a 10 degree angle at 13 ms calculate the
the wave function for a traveling wave on a taut string is in si units yxt 0380 sin 12t 1x 4a what are the speed and
twin brothers each of mass 50 kg sit in a symmetric canoe of mass 40 kg each boy sits 15m from the center of the canoe
consider two reactions reaction 1 has a constant half-life whereas reaction 2 has a half-life that gets longer as the
a suction cup works by virtue of a vacuum that is created within the cup when the cup is pressed against a flat surface
explain why the boiling point of a two component mixture rises slowly throughout a simple distillation when the
consider an airplane window area 032 m2 if the pressure inside the plane is atmospheric pressure and the pressure
the concentration of a chemical degrades in water according to first-order kineticsthe degradation constant 02 day-1if
a spherical brass shell has an interior volume of 133 x 10-3 m3 within this interior volume is a solid steel ball that
how many grams of nacl would you need to add to a a 1 l water sample ph7 so the ionic strength equaled
obtain an expression in terms of g giving the number of grams of h20 that can be formed by the combustion of g grams of
two charged bodies separated by a distance d exert an electrical force on each other the charge on one of the bodies is
a 500 kg mixture of salt and water is 150 by mass salt give the mass of salt and water in the
an unknown metal m reacts with sulfur to form a compound with the formula m2s if 1233 g of m reacts with 311 g of s
a 70 kg teen is riding a popular amusement park ride in which a large cylindrical chamber of diameter 4 meters is spun
calculate the by mass and the molarity of a mgcl lower subscript 2 solution made by dissolving 108 g mgcl lower