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two radioactive nuclei a and b are present in equal numbers to begin with three days later there are 299 times as many
a monatomic ideal gas at 165 atm and an initial temperature of250 degc undergoes a slow expansion at constant pressure
two groups of canoeists meet in the middle of a lake after a brief visit a person in canoe 1 pushes on canoe 2 to
an electric generator contains a coil of 120 turns of wire each forming a rectangular loop 600 cm by 367 cm the coil is
use energy conservation to discover the mass of planet ii where it is observed that a meteor is approaching in a
an object undergoing simple harmonic motion has amplitude of 23m if the maximum velocity of the object is 10 ms what is
a force of 16n is applied to the end of a 063 m-long torque wrench at an angle 45 degrees from a line joining the pivot
describe how newtons three laws of motion involved in the process of lifting a weight using the high pulley consider
pretend i went to buy a big diamond or a big cubic zirconia cz for making a ring in a gem show the salesman first
a thin layer of alcohol with n2 12 lies on top of a thin layer of water it h n3 133 which is on top of glass surface
when a ray of light is incident on a material of refractive index 14 nbspthe angle of refraction is 32 degreesnbsp a
a stick of mass 95 kilogram and length 33 meter is pinned at its center but is free to rotate the moment of inertia of
a ball is thrown at a speed of 20 ms at an angle of 30 degree above the horizontala find the initial horizontal and
a 274 kilogram block initially at rest is pulled to the right along a horizontal surface by a constant horizontal force
a particle of unknown mass mnbspdecays into two particles of known masses m1nbsp05 gevc2 and m2nbsp 1gevc2 whose moment
when ultraviolet light of wavelength 25410-5 cm and intensity 05 mwcm2 form a mercury arc falls upon a clean copper
a 50 kilogram block is pushed 80 meter up a rough 36 degree inclined plane by a horizontal force of 79 newton if the
a 6600 kilogram satellite is in a circular earth orbit that has a radius ofnbsp25nbspxnbsp107nbspmeter a net external
a flat piece of glass is supported horizontally above the flat end of a 110 cm long metal rod that has its lower end
an amusement park ride consists of a rotating circular platform 800 meter in diameter from which 110 kilogram seats are
a trumpet creates a sound intensity level of 128 102 db at a distance of 090 ma what is the sound intensity of a
a helicopter holding a 70-kg package suspended from a rope 50 m long accelerates upward at a rate of 52 ms2 ignore air
the wave function of a harmonic wave on a string is yxt 0005sin753x 2180t where x and y are in m and t is ins what is
a model airplane of mass 0770 kilogram flies in a horizontal circle at the end of a 660 meter control wire with a speed
assume that when you ride on your 800-kgbike the weight of you and the bike is supported equally by the two tires if