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an electrical moter is used to operate a carnot refrigerator with an interior temperature of 273k liquid water at 273k
unpolarized light of intensity i0 is incident on a stack of 7 polarizing filters each with its axis rotated 15 degrees
each of the four cylinders of a combustion engine has a displacement of 20l if each pison in the four cylinders is
unpolarized light with intensity 370 w m2 passes first through a polarizing filter with its axis vertical then through
100 w electric heater operates for 10 minutes to hear the gas in a cylinder at the same time the gas expands from 200l
a parallel plate capacitor has a capacitance of 10mf and its charge with a 20v power supply the power supply is then
the intensity of sunlight reaching the earth is 1360 wm2part a what is the power output of the sunp wpart b what is the
give the formula of a product derived from the first-named substance that may be formed in the following reactions note
one mole of an ideal monoatomic gas initially at 300 k is expanded from an initial pressure of 10 atm to a final
you want to heat 1 l of water by 10 ordmc and you have the following four methods under considerationa you can heat it
a new compund has been analyzed and a 47191g sample has been found to contain 1929g c 01079 of h 08566g of oxygen and
suppose that the atomic mass unit amu had been defined as one-sixth of the average mass of an atom of fluorine instead
consider a spiral galaxy that is moving directly away from earth with a speed v 3600 106 ms at its center as shown in
using the information on the mass of a proton mass of an electron and the sizes of the nucleus and the atom calculate
some of milikans oil-drop data are shown in the table the measured quantities were not actual charges on oil drops but
benzene has a heat of vaporization of 3072 kjmol and a normal boiling point of 801 degrees celsius at what temperature
chlorine has two stable isotopes chlorine-35349688 amu and chlorine-37 369656 amu if the average mass of chlorine is
sams job at the amusement park is to slow down and bring to a stop the boats in the log ride if a boat and its riders
a proton with an initial speed of 800000 ms is brought to rest by an electric fielda what was the potential difference
a thin uniform metal bar 3m long and weighing 85 n is hanging vertically from the ceiling by a frictionless pivot
the greater vancouver regional district chlorinates the water supply at a rate of 100ppm the chlorine is introduced in
a mass-less pan hangs from a spring that is suspended from the ceiling when empty the pan is 51 cm below the ceiling if
to determine the approximate mass of a small sherical shot of copper the following experiment is preformed 125 pieces