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a 0240 kg piece ofaluminum that has a temperature of -155degc is added to 15 kg ofwater that has a temperature of
a 20-cm-thick bar of soap is floating on a water surface sothat 15 cm of the bar is underwater bath oil of specific
assume that the pressure in a room remains constant at 101 x105 pa and the aire is composed only of nitrogen the
during each heartbeat approximately 68 cm3 of blood is pushed from theheart at an average pressure of 105 mm-hg
a rectangular air mattress is 20 m long 050 m wide and008 m thick if it has a mass of 20 kg what additional mass can it
a cowboy at a dude ranch fills a horse trough that is 15 m long60 cm wide and 40 cm deep he uses a 20-cm-diameter hose
in a diffraction experiment light of 600nm wavelengthproduces a first-order maximum 0350 mm from the central maximum
an electron moving to the right at 10 the speed of lightenters a uniform electric field parallel to its direction
a projectile is fired vertically from earths surface with aninitial speed of 10 kms neglecting air drag how far above
a man runs with a speed of 6 ms off a platform that is 10 mabove the water how fast is he moving when he hits the water
a solid cylindrical object has a mass of 20 kg a diameter of010m and a length of 018m what is the moment of inertiaof
heat is extracted from a certain quantity of steam at 100degrees c as a result the steam changes into ice at 00degrees
calculate the cenrtripetal acceleration of the earth in itsorbit around the sun and the net force exerted on the earth
a commuter train blows its horn as it passes a passengerplatform at a constant speed of 400ms the train horn sounds at
a satellite has a mass of 5900 kgand is in a circular orbit 30105 m above the surface of a planet the period of
adolf and ed are wearing harnesses and are hanging from theceiling by means of ropes attached to them they are face to
a point charge q is imbedded at the center of a sphere oflinear dielectric material with susceptibility and radiusr
a cylindrical diving bell 200 min diameter and 500 m tall with anopen bottom is submerged to a depth of 220 m in the
a power boat of mass 500 kg iscruising at a constant speed of 89 ms the propeller provides adrive force of 765 n the
a dolphin locatedin sea water at a temperature of 25degc emits a sound directedtoward the bottom of the ocean 200
a guitar string produces 4 beatssecond when sounded with a250hz tuning fork and 9 beatssecond when sounded with a 255
an ore sample weighs 1750 n in air when the sample issuspended by a light cord and totally immersed in water thetension
the record for the highest speed achieved in alaboratory for a uniformly rotating object was 201103 ms for a015-m long
a 30g bullet strikes a 650kg block attached to a fixedhorizontal spring whose spring constant is 590x103nmand sets it
a glass block n 156 is immersed in aliquid a ray of light within the glass hits a glass-liquid surfaceat a 630deg