Recent content by VASUbhagwat

yes g=GM/(r^2), does give the relation to determine the mass of the earth. But why does not the value of G change with times with so much of activities happening in the universe?? and when cavendish determined the value of G( i thought he was the one who determined the mass of the earth, stay my...

Why is the potential of the Earth taken as zero ? Putting the question in other words:: All earthing is done to the ground. Over the years every singe charge in excess is grounded to the earth. Even then why is it so that the potential of the Earth is considered to be zero ??

Mass of the Earth is 5.9 x 10^24 kg . How long has it been at this value and why does it not change even when the population of the word has gone up by many folds , there have been new flora and fauna . when was this last measurement taken?

hello, what is the underlying factor for the samples of Cobalt Ferrites prepared from different synthesis methods to have a different crystallite size...( Chemical Coprecipitation, Sol gel, ceramic method) ..What does the fuel, have to do with the crsytallite size... What is the difference...

Hi All Please let me know as to in the space group symbol fd3m(oh7) what do each letters stand for... f= d3= m= (oh7)= Thanking all in anticipation .

Thanks to @Issy04, @Vanadium 50, @anachin6000, @sophiecentaur @Kori Smith , @boneh3ad for the wonderful insights into the thread. So, the hearing of sound is physics and the biologics . As I interpret it, vibrations are given a particular sound by our brains to identify the specific sound...

yes, but what happens in a vibration, that makes it produce a sound.Why does our ears interpret that as a sound ?

Why is sound produced? Say, for example, when a stone hits a tin box a sound is produced. Why is this sound produced? Even if the sound is produced in the ear, we generally say that the vibrations of the ear drum produces the sound, why is it produced. Why does vibrations produce sound. Even a...

Thanks for the reply. But I am not sure if these explanations could possibly be the truth. Just waiting for others to reply. Will keep you posted as well. Thanks once again for the reply.

The temperature at which the process is carried out is around 120 degree centigrade, however in the interior , the reaction temperature goes to around 1000 degree centigrade. How is it then , that the glass beaker in which the synthesis is carried out does not crack even at such high...

Sir Thanks once again. regards vasudev

Time and again one comes across various authors using the sentence "" by the principles of propellant chemistry"", in order to determine the ratios of the complexant (fuel, like glycene, citric acid etc) and the metal salt, in preparatioin of ferrites by sol gel technology. Say for example in...

Thanks a ton for your reply . But what i want to know is why do we take the width for calculations and not the height

Why is FWHM taken for calculations in XRD analysis of powder pattern? I mean, why don't we take the full peak value?