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what is the maximum energy that can be extracted as a heat and bnon-expansion work when 10 kg of natural gas is burned
two spheres are cut from a certain uniform rock one has radius450 cm the mass of the second sphere is five times
a 70 kg crate is dragged across a floor by pulling on a ropeattached to the crate and inclined 19deg above the
methanol ch3oh 9s used as a fuel in race cars a write a balance equation for the combaustion of liquid methanol in air
two capacitors have the same plate separation but one has squareplates and the other has circular plates the square
the enthalpy of the graphite -----gt diamond phase transition which under 100 kbar occurs at 2000k is 19 kjmol
write balanced a molecular b overall ionic and c net ionic equations for the reaction between an aqueous solution of
the rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket provides there
saccharin c7h5no3s is sometimes dispenced in tablet form ten tablets with a total mass of 05894g were dissolved in
a car is hauling a 89-kg trailer to whichit is connected by a spring the spring constant is 2150 nm the car accelerates
1 what is the percentage strenght of a solution prepared by dissolving 60 g of potassium chloride in 150 ml of water2
a 500-kg projectile is fired at angle of 300 degrees above the horizontal with an initial speed of 120 ms from the top
a uniform electric field of magnitude 300 vm is directed in the positive x direction a 100 microc charge moves from the
which of the compounds i zinc acetate znch3co22 ii barium sulfate baso4 iii ironiii hydroxide feoh3 isare soluble in
a 595kg object is thrown 1810ms at a 3000deg angle andcollides head-on at its peak with a 145kg object fired at280deg
a cannon fires a 7120 kg projectile at 3675deg theprojectile lands in a cart that is on the same level surface as
what happened to the light bulb that did not happen to any other device hint did you feel the light bulb do you think
nuclear fuel is u-235 an alpha emitter with a half-life of 703 million years how long would it take for the amount of
a baseball player leads off the game and hits a long home run theball leaves the bat at an angle of 30 degrees from
a light-rail train going from one station to the next on a straight section of track accelerates from rest at 12 ms2
a skier leaves the horizontal end of the ramp with a velocity of 25ms and lands 70 meters from the base of the ramp how
a rifle is fired horizontally the buillet is found to havetraveled 200 meters the rifle barrel is 190 meters from
a model airplane of mass 75 kg is flying at constant speed in ahorizontal circle at one end of a 30m cord and at a
a proton accelerates from rest in a uniform electric field of 640nc at some later time its speed is 120 x 10e6 msa find
an electron is accelerated by a constant electric field of magnitude 300nca find the acceleration of the electronb use