After an asteroid impacts with the Earth or other planet, a great deal of kinetic energy is released. How does that correspond to the instantaneous change in temperature in the atmosphere?
After an asteroid impacts with the Earth or other planet, a great deal of kinetic energy is released. How does that correspond to the instantaneous change in temperature in the atmosphere?
Posted in 2012
Tagged approximate temperature, Asteroid, asteroid impact, asteroid impacts, atmosphere, change, deal, Earth, energy, impact, instantaneous change, kinetic energy, Planet, temperature
I object to the final equilibration step.
30g of H2O@ 50 C are mixed with 1g of steam @110 C. After final equilibration, the temp is…? (Heat condensation=540cal/g, specific heat of steam=0.5cal/g, sp.heat H2O = 1cal/g)
The answer is about 70 C
The last calculation is: deltaQ of H2O = deltaQ of steam
(30)(1g)(Tfinal-T) = (1)(0.5)(100-Tfinal)
I’m truckin’ along, on top of the world like Leonardo until the part about the specific heat = 0.5 comes in. See, I think that by the time the steam reaches 100C I’ve already converted it into water… so why would I use the specific heat of steam at the end again?
Posted in 2012
Tagged challenge, change, equilibration, heat, heat challenge, mcdeltaT, phase, phase changes, step, world
I would think that if something like an asteroid impact wiped out almost all of humanity except for those in developing countries who know nothing about modern technology this could happen… same with a drastic change in the Earth’s magnetic field that could make anything electric useless.
I ask this question based on the myth of Atlantis, where a society as advanced as ours today existed in prehistoric times, and in addition the 2002 movie The Time Machine, where humanity in the year 802701 is shown to be primitive with only archaeological traces of modern life we see today.
Posted in 2012
Tagged age, Asteroid, asteroid impact, catastrophe, change, developing countries, drastic change, Earth, humanity, impact, magnetic field, modern technology, nothing, something, Stone, stone age, technology
I would think that if something like an asteroid impact wiped out almost all of humanity except for those in developing countries who know nothing about modern technology this could happen… same with a drastic change in the Earth’s magnetic field that could make anything electric useless.
I ask this question based on the myth of Atlantis, where a society as advanced as ours today existed in prehistoric times, and in addition the 2002 movie The Time Machine, where humanity in the year 802701 is shown to be primitive with only archaeological traces of modern life we see today.
Posted in 2012
Tagged age, Asteroid, asteroid impact, catastrophe, change, developing countries, drastic change, Earth, humanity, impact, magnetic field, modern technology, nothing, something, Stone, stone age, technology