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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
a gas sample is connected to a closed end manometer the difference in mercury levels in the two arms is 115mm what is
an accelerating voltage of 252 x 103 v is applied to an electron gun producing a beam of electrons originally traveling
a massless spring of constant k 1000 nm is fixed on the right side of a level track a block of mass m 150 kg is
an air duct in a building has a radius of 8 cm and a length of 17 m what pressure is required to push air through the
the isothermal compressibility of copper at 293k is equal to 725x10-7 bar-1 what pressure must be applied to copper at
a tank of water sits at the edge of a table of height 10 m the tank springs a very small leak at its base and water
a disk shaped grindstone of mass 30 kg and radius 8 cm is spinning at 600 rpm after the power is shut off the
5000 ml of 0140 m naoh is added to 625 ml of 0200 m weak acid ka 895 x 10-5 what is the ph of the resulting
the blood flow rate through the aorta is typically 97 cm3s and a typical adult has about 52 liters of blooda how long
light from a laser strikes a diffraction grating that has 5 300 grooves per centimeter the central and first-order
a chemistry student needs 400 ml of pentane for an experiment by consulting the crc handbook of chemistry and physics
two metal blocks are attached by a cable as shown in the figure below and are submerged at rest near the surface of a
a 5 kg point mass and a 4 kg point mass are attached to the end of a rod that has a mass 1 kg and a length of 1 meter