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For example as a function of something like its speed, surface area, the drag force experienced by the meteorite.

- Thread starter PeterH
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- #1

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For example as a function of something like its speed, surface area, the drag force experienced by the meteorite.

- #2

Danger

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- #3

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This is what I know:

- Stony meteorite, specific heat: c_sm = 1.2 * 10^3 J kg^-1 K^-1
- Stony meteorite, thermal conductivity: k_sm = 2.0 W m^-1 K^-1
- Stony meteorite, density: p_sm = 3.3 * 10^3 kg m^-3

- Stony meteorite, melting point: T_sm = 1.7 * 10^3 K

- Stony meteorite, specific melting heat: L_sm =2.6 * 10^5 J kg^-1

The formulation of the assignment, states that the mass of the meteorite is 0.025 kg when it hits earth, and that I must take into account the loss of mass at it moves through the atmosphere.

I have functions describing the density of the atmospheric air as a function of height (which are approximations based on a 50% reduction of air density each 5000 m) and the surface area of the meteorite as a function of its mass (based on the assumption that it is a sphere).

As to whether it is spinning, its shape, its drag coefficient and other factors like that; they're unknown, which means that I may make assumptions as I like, just as long as I argue why the assumptions are made and estimate their validity.

Therefore, any general equation, describing the loss of mass, as a function of anything I have included here or time (if one like that exists) would be greatly appreciated.

- #4

Danger

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In any case, thank you for your help so far!

- #6

Danger

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Just for the sake of technical accuracy, though, I will point out some definitions that you should keep straight when making your presentation. A chunk of rock schmoozing around in space is a meteor

- #7

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Just for the fun of it, here's a video of the meteor my project is based upon (and it's frames from this video, that I've based my calculations of its velocity on):

- #8

Danger

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Jeez! Somebody could have lost an eye!here's a video of the meteor my project is based upon

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