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the masses of 1 mole of various gases are as follows hydrogen about 2 grams helium about 4 grams nitrogen about 28
1 use the following working values for the physical constantsacceleration due to gravity on the surface of the earth g
a ni-cu alloy is prepared which has a lattice constant of 0354 nm the maximum magnetisation of the alloy is measured as
take a clear balloon add one bb and blow up the balloon to about the size of a softball then tie it off1 what is an
a nanoparticle assembler is constructed out of 500 million atoms and is able to place 2 million atoms per seconda how
a dene the mean free path for a neutron in a materialwater is used as the moderator in a pwr calculate the mean free
a scottish physics professor is fishing in loch ness and hooks an ancient gold artifact the density of gold is 19300
could you please provide the answers and workings out to the following physics problems explain exactly how you came up
a 66-kg sign hung centered from a uniform rod of mass 82 kg and length 23m at one end the rod is attached to the wall
part 1 each question should be answered separately1 suppose you are in a barrel going over niagara falls and during the
what are the units of specific gravity assuming that the density of water is 0997 gml-1 and the specific gravity of
tube b full of air is sealed on the top and a 16 od opening on the bottom b is 1046 longcontainer e full of air is
a particle p of mass m is fastened to the end of a string with length l the particle starts from rest in a position
1a converging lens with a focal length of 31 cm is used to image an object which is 34 cm away from the lens how far
question 1 one hundred years ago many scientists believed that the universe was infinite and eternal with no beginning
1we have heard of simple toy models of the universe that were studied by einstein de sitter and friedman if our
1 derive strirlings approximation for n2 derive the gaussian approximation of the binomial distribution3 derive
everyculture since the beginring of civilization has sought to understand the world through stories stories which gave
how do you understand the term paradigm what kuhn mean by this term identify a paradigm in your particular discipline
assume that the energy density in the universe is a power-law in the scale factorepsilon epsilonoalphanwhere n can be
1 consider a flat universe with only mattera prove that epsilonepsilone0a-3 where epsilone0 is the critical density
at the galaxys core astronomers have observed a small massive object at the center of the milky way galaxy a ring of
1 a singly charged positive ion has a mass of 2510-26kg after being accelerated through a potential difference of 250v
junior high studetn needs help with understanding concept behind grvaity help with following basic questions in simple
there are a pair of identical twins one remains on earth while the other goes on an extended trip through the galaxy