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a gas while expanding under isobaric conditions does 458 j of work the pressure of the gas is 165e5 pa and its initial
if you stacked avogadros number of pennies one on top of the other on earths surface how far would the stack extend in
a 080 -long metal rod is dropped vertically onto a marble floor when the rod strikes the floor it is determined
a conducting rod with a length of 25 cm is placed on a u-shaped metal wire that has a resistancerof 80 as shown in the
a wooden block of mass m resting on a frictionless horizontal surface is attached to a rigid rod of length and of
a carnot refrigerator absorbs heat from a space at 15 degrees c at a rate of 16000 kjh and rejects heat to a reservoir
a high-protein diet contains 70 of carbohydrate 160 of protein and 45 of fat how many kilocalories does this diet
when resistors 1 and 2 are connected in series the equivalent resistance is 187 when they are connected in parallel
an experimental space station consists of a large rigid rod with length l 100 m and mass m 10000 kg which rotates
sulfuric acid sold for laboratory use consists of 967 by mass sulfuric acid the rest is water the density of the
a hot-air balloon is accelerating upward under the influence of two forces its weight and the buoyant force for
what is the longest wavelength that can be observed in the third order for a transmission grating having 6700 slitscm
a simple pendulum consists of a ball connected to one end of a thin brass wire the period of the pendulum is 20000 s
the standard width between rails on north american and most european railroads is 4 ft 8 in calculate this distance in
a block of mass m 55 kg is pulled up a 26deg incline as in the figure with a force of magnitude f 37 na find the
in older us car total cylinder volume is expressed in cubic inches compute the total cylinder volume in liters of a
a family used 1438 kilowatt hours kwh of electricity during the month of october express this amount of energy in
a 76-kg man standing on a scale in an elevator notes that as the elevator rises the scale reads 817 n what is the
an object of mass m 150 kg is attached to a cord that is wrapped around a wheel of radius r 120 cm and mass m 500 kg
hurricane katrina which hit the gulf coast of louisiana and mississippi on august 29 2005 had the second lowest ever
a 130-kg object undergoes an acceleration of 15 ms2a what is the magnitude of the resultant force acting on itb if this
the rest energy of an electron is 0511 mev the rest energy of a proton is 938 mev assume both particles have kinetic
balloons are still used to deploy sensors that monitor meteorological phenomena and the chemistry of the atmosphere it
a football punter accelerates a football from rest to a speed of 8 ms during the time in which his toe is in contact
a spacecraft with a proper length of 250 m passes by an observer on the earth according to this observer it takes 0780