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suppose that 100g of ydrogen is seperated into electrons andprotons supoose also that the protons are placed at
suppose that you hear a clap of thunder 162s after seeing theassociated lightning stroke the speed of sound waves in
an oscillating lc circuit has a current amplitude of730 ma a potential amplitude of 250mv and a capacitance of 205 nfa
during an all-night cram session a student heats up a 07 x 10-3 m3 glass pyrex beaker of cold coffeeinitially the
a 300 watt toaster is plugged into a 120 volt house currentelectricity is sold at 15 cents per kilowatt hour if the
a large storage tank open to the atmosphere at the top and filledwith water develops a small hole in its side at a
suppose a monatomic ideal gas is contained within a verticalcylinder that is fitted with a movable piston the piston
after 200 days the activity of a sample of an unknown type ofradioactive material has decreased to 842 of the
a superball of mass 60g is dropped from a height of 2m itrebounds to a height of 180m what is the change in its linear
a 360 ohms and 576 ohms light bulbs are connected in serieswhat is the total resistance 360 576 936 ohms how much
in a diesel engine the piston compresses air at 301 k to a volume that is 00621 of the original volume and a pressure
the deepest place in all the oceans is the marianas trench wherethe depth is 109 km and the pressure is 110e8 pa if
a 100-g aluminum calorimeter contains 250-g of water twosubstances are in thermal equilibrium at 10 degrees celcius
an object has an actual mass of 2kg and an apparent mass of 15kgwhen under water what is the volume and density of the
a carnot engine operates between the temperatures of850k and 300k the engine performs 1200j of work each cycle andeach
a projectile is launched with aninitial speed of 60 ms at an angle of 60 degrees it lands on ahillside 4 seconds latera
the total charge q is placed on a conductingshell in the cavity of the conductor you have a charge q what is the charge
a 650 kg weight watcher wishesto climb a mountain to work off the equivalent of a large piece ofchocolate cake rated at
if a particle undergoes simple harmonic motion shm withamplitude 025m what is the total distance it travels in one
a 10 cm radius air duct is usedto replenish the air of a room 94 m50 m 50 m every 10 min how fast does air flow in the
a layer of ice has formed on a small pond the air just above theice is at -599 degc the water-ice interface is at 0
fresh water flows through a horizontal tube of diameter 265 cmthat is joined to a second horizontal tube of diameter
a solid block is suspended from a spring scale whenthe block is in air the scale reads 347 n when immersed inseawater
a cancer patient is undergoingradiation therapy in which protons with an energy of 12 mev areincident on a 025 kg
a marble is thrown horizontally with a speed of 13 ms from the top of a building when it strikesthe ground the marble