1m3 of an asteroid weights 7tons, usually. If its radius is 7.5m, then we have a volume of 4/3*pi*(7.5) ~ 1800m^3. The total weight is around 12thousand tons. Not much, really.
2013/2/20 ChemE Stewart <cheme...@gmail.com> > 10,000 tons is A LOT OF STUFF > > > On Wed, Feb 20, 2013 at 12:06 PM, ChemE Stewart <cheme...@gmail.com>wrote: > >> Where is it? >> >> >> On Wednesday, February 20, 2013, Daniel Rocha wrote: >> >>> There is nothing unusual about that asteroid. Calculate the kinetic >>> energy of a sphere with 15m of diameter at 30km/s. Consider the typical >>> density of 7g/cm^3. The kinetic energy released is around 500ktons of tnt >>> and its weight around 10ktons. >>> >>> >>> 2013/2/20 ChemE Stewart <cheme...@gmail.com> >>> >>>> Close, probably dark matter nuclei.... :) >>>> >>>> I think I read 50m diameter but I have not done the math. >>>> >>>> I want to see if they can find what made that perfectly round 20'-30' >>>> diameter hole in the ice. So far nada... >>>> >>>> Should be worth a lot if it exists. >>>> >>>> >>>> On Wed, Feb 20, 2013 at 10:49 AM, Terry Blanton <hohlr...@gmail.com>wrote: >>>> >>>>> On Wed, Feb 20, 2013 at 8:49 AM, ChemE Stewart <cheme...@gmail.com> >>>>> wrote: >>>>> > You, like NASA, are off by at least a factor of 1000... >>>>> > >>>>> > >>>>> http://www.foxnews.com/science/2013/02/19/russian-meteorite-1000-times-bigger-than-originally-thought/ >>>>> >>>>> That article makes no sense at all. Maybe they mean the energy >>>>> released was bigger; but, they still say it was only 15 m in diameter. >>>>> Oh, I see, the density was 1000 times greater. Well, heck, we must >>>>> have had a piece of a neutron star hit us. >>>>> >>>>> <sigh> >>>>> >>>>> >>>> >>> >>> >>> -- >>> Daniel Rocha - RJ >>> danieldi...@gmail.com >>> >> > -- Daniel Rocha - RJ danieldi...@gmail.com
