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how much heat energyin kilojoulesis required to convert 70g of ice at -180 degrees c to water at 25 degrees
a 420-g bullet embeds itself in a 200-kg block which is attached to a horizontal spring with a force constant of 950 nm
the function xaxa21-xa is an acceptable wave function for the article in the one-dimensional infinite depth of length a
a 57 kg rock with a volume of 36 l is completely submerged in water the density of water is 1 kgla what volume of water
in the picture below a 9 kg bar 15 m long is set up to rotate about its center the dark circle each arrow represents a
which of the functions sin3x 6cos4x 5x3 1x 3e-5x ln 2x are eigenfunctions of d2dx2 for each eigenfunction state the
what is the ph of a mixture of 1000 ml of 001m nah2po4 and 1000 ml of 001 m na2hpo4 please show the
an rl circuit has a 5 ko resistor and a 1 mh inductor this circuit is driven by a 100 hz sine wave with 1 v amplitude
how many grams of 97 pure naoh pellets do you need to make 1000 liter of 15
a quarter-pound hamburger with all the fixings has a mass 210g the food energy of the hamburger is 24mjwhat is the
three 150-v cells each with an internal resistance of 00500 are connected in series to form a battery with a current of
coca-cola used to contain 0060 phosohoric acid by mass determine the ph of coca-coal prior to
a sheet of glass is coated with a 500nm thick layer of oil n 142for what visible wavelengths of light do the
a cube of edge length 21 cm is positioned as shown in the figure below there is a uniform magnetic field throughout
an isolated capacitor of unknown capacitance has been charged to a potential difference of 100v when the charged
a man stands in the middle of a boat which is 41 m long and has a mass of 75 kg the end of the boat that is closest to
a car is traveling east at 14ms weighing 2000kg a car is traveling north at an unknown velocity and weighs 1500 kg upon
a block of mass 30 kg moves along a frictionless track which has a dip 07 m below the original level of the track and
an electric field exerts a force of 300 x 10 -4 n on a positive test charge of 750 x 10 -4 c find the magnitude of the
a solid spherical conductor of radius 15 cm has a charge q 65 nc on it a second initially uncharged spherical
a wind turbine is initially spinning at a constant angular speed as the winds strength gradually increases the turbine
a 8796 lb force is applied to a surface that measures 37 in long and 15 in wide determine the pressure exerted on the
the rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket provides therefore
a jellyfish is floating in a water-filled glass tank 100 m behind a flat pane of glass 600 cm thick and having an index
a star of radius 91 times 105 km rotates about its axis with a period of 49 days the star undergoes a supernova