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the power in watts used to move air out of the lungs is equal to the air pressure in nm2 multiplied by the air flow
suppose a 60-w light bulb is left on over a long weekend say for 72 hours if the electric company charges you 008kwh
1 imagine that you heard someone announce each of the following discoveries knowing what you know about the solar
a 139 x 10-6 f capacitor is connected to an ac generator with an rms voltage of 394 v and a frequency of 86 hz what is
a ball is thrown straight up with an initial velocity of 52ms how long did it take to reach maximum height and what is
please explain the answers1a basketball player makes a free-throw shot at the basketnbspthe 06 kg basketball leaves the
a great lakes ore freighter has a mass of 41000 tons it is designed to safely carry 31000 tons of iron ore when it is
a thin solid barrier in the xy-plane has a 142mumnbspdiameter circular hole an electron traveling in the z-direction
a string hangs over a frictionless pulley a 10 kg mass hangs on one side of the pulley and a 25 kg mass hangs on the
1a 500 g piece of silver at 150oc is submerged in 1000 g of water at 5oc to be coolednbspdetermine the final
1what is the maximum distance that a 60 w motor may vertically lift a 90 n weight in 75 s2 a force of 25 n is required
a 0300-kg sample of nitrogen gas diatomic molecules mn2 4652 times 10-26 kg in a chamber fitted with a piston
brett uses a rope and pulley to lift a 75 kg sack 20 m onto a truck he pulls downward on the rope with a force of 25 x
a a 2500 n force moves a 1200 kg crate from rest to a final speed of 96 msnbspif the frictional force is 500 n what is
a copper cup with a mass of 1000 g contains 960 g of water both the cup and the water are at 130oc if 700 g of a
describenbspspecific heatnbspwater has a specific heat of 10 calgoc while that of copper is 009 calgocnbspwhat can you
use energy and work equations to answer this questiona 250 n force moves a 120 kg crate from rest to a final speed of
you insert a pipette of diameter 0700 mm into a liquid that is at 200c and has a mass density of 1261 kgm3part a if the
in an air duct running along the outside of a building air flowing through the duct has a mass density of 120 kgm3 and
you have constructed a raft that is 200 m long 200 m wide and 0100 m thickpart a if the mass of the raft is 200 kg and
sonic the hedgehog weighs 5kg and is falling from a height of 50 m onto a spring which will be compressed 1m before
a venturimeter is used for measuring flow of water along a pipe the diameter of the venturi throat is two fifths the
just for fun you try to throw a ball to your roommate who is directly above you standing at the window the ball thrown
a helicopter is traveling at 40nbspms at a constant altitude of 200nbspm over a level field if a wheel falls off the
hurricane emily was roaring towards landfall at the border of texas and northern mexico along the gulf which country do