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1) you are conducting an osmosis experiment with a semi-permeable dialysis membrane of fixed pore size. If the solution temperature rises by 20 degree celcius and the coefficient of linear expansion of the regenerated-cellulose membrane is a=2*10^-4 K^-1, how much bigger are the pores in the membrane?
A human cannon ball is launched at 25.0 m/s at an angle of 30.0 degrees from horizontal. What is the velocity of the human after 0.540 seconds in terms of i and j
If one shines a laser with wavelength ? = 650 nm through a single slit of width a = 0.04 mm, How far apart are the minima
A potter's wheel is a uniform solid disk of diameter 0.72m and a mass of 60kg. the wheel is initially spinning at a rate of 85 rev/min. what is moment of inertia of the disk
Light of wavelength 571 nm incident on a pair of slits produces an interference pattern on a distant screen in which the separation between adjacent bright fringes at the center of the pattern is 0.571 cm. A second light source, when incident on t..
A 1.6-m wire is wound into a coil with a radius of 4.07 cm. If this coil is rotated at 105 rpm in a 0.070-T magnetic field, what is its maximum emf
A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. how fast will the disk be turning
A sledge loaded with bricks has a total mass of 18.3 kg and is pulled at constant speed by a rope inclined at 19.7° above the horizontal. What is the mechanical energy lost due to friction
Consider a common mirage formed by super-heated air just above a roadway. A truck driver whose eyes are 2.00 m above the road, Find the index of refraction of the air just above the road surface
A car is traveling 17 m/s when the driver sees a child standing on the road. He takes 0.8 s to react, then steps on the brakes and slows at 7.5 m/s2. How far does the car go before it stops.
A freezer has a coefficient of performance of 2.40. The freezer is to convert 1.98kg of water at 26.0 oC to 1.98kg of ice at -5.00 oC in 1 hour. How much electrical energy is consumed by the freezer during this hour
An object 1.40 cm high is held 3.00 cm from a person\'s cornea, Find the magnitude of the radius of curvature of the convex mirror formed by the cornea
An automobile has a mass of 1500 kg, and its aluminum brakes have an overall mass of 6.00 kg. (a) Assume all the mechanical energy that transforms into internal energy when the car stops is deposited in the brakes and no energy is transferred out of ..
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