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a rock weighing 7150 n rock with a volumeof 34 l is completely submerged inmercury the density of mercury is 136 kgla
a centrifuge is a device in which a small container ofmaterial is rotated at a high speed on a circular path sucha
an 840-mh inductor and a 580-muf capacitor are connectedin series with a generator whose frequency is 375 hz the
the box of a well-known breakfast cereal states that one ounce of the cereal contains 127 calories 1 food calorie 4186
a lens appears greenish yellow lambda575 nm when illuminated with white light the index of refraction of the lens is
the distance between the slits in a youngs experiment is 50times the wavelength of the monochromatic light source find
when you push a 180-kg book resting on a tabletop it takes 245 nto start the book slidingwhat is the frictional force
a stationary horn emits a 113 hztone what frequency is heard by a passenger on a train which ismoving towards this horn
the potential energy stored in the compressedspring of a dart gun with a spring constant of 6650 nm is 1040j find by
when you drop a rock into a well you hear thesplash 24 seconds latera how deep is the
the buildup of plaque on the walls of an artery may decrease itsdiameter from 11 cm to 077 cm the speedof blood flow
at the tropics thenbsp water close to the surface of the ocean is hotter than the deep water would the second law of
a 497-g bullet is shot through a102-kg wood block suspended on a string200 m long the center of mass of the block rises
an automobiles battery is connected to an electric motor that is used to move up a loadnbsp the battery stays at anbsp
an inflatable mattress is 21 m long061 m wide and 14 cm deep if themattress itself has a mass of 022 kg what is the
a man moves the 10-g object shown in a vertical plane from positionx to position y along a circular track of radius 20
if an object is placed 15 cm in front of a concave mirror with aradius of curvature of 20 cm what are the image
a block of mass 260 kg is pushed260 m along a frictionless horizontaltable by a constant 160 n force directed 220deg
a rocket is fired straight up through the atmosphere from the southpole burning out at an altitude of 246 kmwhen
a525-g block starts from rest at the top of a frictionless hill that is inclined 210ordm with respect to the horizontal
a 0590-kg slab of granite isheated so that its temperature increases by 710deg c the amount of heat supplied to
a single conservative force acting on a particle varies asfvec -ax bx5ihat n where a and b areconstants and x is in
a 275 m long board is used to slide a compressor a verticaldistance of 75 cmwhat is the mechanical advantage of the
how much water will flow in one minute through 200mm of a tube15mm in diameter if the pressure across the tube is
a double-slit experiment is performed underwater with a submergedhene laser suppose that the separation of the slits