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a process takes place at constant pressure the volume changes and the temperature increases by 870oc the heat capacity
a block of wood weighs 500 n whenweighed in air a sinker is attached to the block and the weightof the wood-sinker
a sample of poylethylene is found to have an average molecular weight of 32x106 estimate the root-mean-square
a walkway suspended across a hotellobby is supported at numerous points along its edges by a verticalcable above each
a circuit contains six 219 o lamps with 60-w bulbs and a 94 o heater connected in parallel the voltage across the
evaluate reversibility of a process where an ideal monoatomic gas is first slowly compressed 10-fold by a gradually
an x-ray photon with a wavelength of 0110 nm scatters from a free electron at restthe scattered photon moves at an
a 430 kg box is sliding across the horizontal floor of an elevator the coefficient of kinetic friction between the box
consider n moles of an ideal monatomic gas placed in a vertical cylinder the top of the cylinder is closed by a piston
1500 cm3 of ideal gas at stp is cooled to -20o c and put into a 1000 cm3 container what is the final gauge pressurea 11
traveling at a speed of 195 ms the driver of an automobile suddenly locks the wheels by slamming on the brakes the
a rocket with inital mass 1000 kg adjusts its thrust byvarying the rate at which mass is ejected the ejection
a person notices a mild shock if the current along a path through the thumb and index finger exceeds 80 mua find the
a 9 kg object iinitially at rest in free space explodes intothree segments of equal mass two of these segments are
give examples of four states of matter discuss how gravity affects weight and density why is the mass density more
a student on a piano stool rotates freely with anangular speed of 316 revs the student holds a 150 kg mass ineach
a charge of 60 mc is placed at each corner of a square 0100mon each side determine the magnitude and direction of the
a helium filled ballon at atmospheric pressure is tied to a 30 m long 40g stringthe ballon is spherical with mass 025
when a metal block is hung from a beam balance thebalance reads 458 grams when the block is submerged in a liquidthe
human blood contains plasma platelets and blood cells to separate the plasma from other components centrifugation is
an incandescent light bulb produces light because current in a tungsten filament is trnsformed into other types of
a rocket is fired with an initial velocity of 3ms at an angleof 35 degrees to the horizontalwhat is the initial
a flask disk 10 diameter is oriented so that the plane of the disk makes an angle of pi6 radians with a uniform
a package containing 600 millicuries of 32p half life 143 days was shipped on february 11 2011 at 1100 am the package