## Dynamic Planet B/C

SciolyHarsh
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### Re: Dynamic Planet B/C

a. Calculate the density of a glacier with a weight of 10780 Newtons and a thickness of 2 meters.
b. What state is the ice with this density in?
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UTF-8 U+6211 U+662F
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### Re: Dynamic Planet B/C

SciolyHarsh wrote:a. Calculate the density of a glacier with a weight of 10780 Newtons and a thickness of 2 meters.
b. What state is the ice with this density in?
Wouldn't this require the area of the glacier?

Sapphire
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### Re: Dynamic Planet B/C

Yeah, you need area.
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SomeoneElse
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### Re: Dynamic Planet B/C

SciolyHarsh wrote:a. Calculate the density of a glacier with a weight of 10780 Newtons and a thickness of 2 meters.
b. What state is the ice with this density in?
```a. Without the area, I guess I can only guess.
The mass would be 1098.87 kg., due to dividing the weight by gravity.
The volume would be 2x, where x is the area of the glacier in m^2.
the density of the glacier has to be between 800 and 900 kg/m^3.
I'll take a wild guess here; the area of the glacier is 600 meters squared.
After making that calculation, the formula would be 1098.87 / 1200, in kg/m^3.
Thus, the density of the glacier would be 915.7 kg/m^3. (not very close, but good enough)```
`Now, again, since I made a wild guess with the area, the density I got would most likely suggest the ice is glacial ice. If the density was from 400-800 kg/m^3, it would be reasonable to say the ice was firn.`
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### Re: Dynamic Planet B/C

SomeoneElse wrote:
SciolyHarsh wrote:a. Calculate the density of a glacier with a weight of 10780 Newtons and a thickness of 2 meters.
b. What state is the ice with this density in?
```a. Without the area, I guess I can only guess.
The mass would be 1098.87 kg., due to dividing the weight by gravity.
The volume would be 2x, where x is the area of the glacier in m^2.
the density of the glacier has to be between 800 and 900 kg/m^3.
I'll take a wild guess here; the area of the glacier is 600 meters squared.
After making that calculation, the formula would be 1098.87 / 1200, in kg/m^3.
Thus, the density of the glacier would be 915.7 kg/m^3. (not very close, but good enough)```
`Now, again, since I made a wild guess with the area, the density I got would most likely suggest the ice is glacial ice. If the density was from 400-800 kg/m^3, it would be reasonable to say the ice was firn.`
*shrug* I guess you can ask a question next.

SomeoneElse
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### Re: Dynamic Planet B/C

UTF-8 U+6211 U+662F wrote:
SomeoneElse wrote:
SciolyHarsh wrote:a. Calculate the density of a glacier with a weight of 10780 Newtons and a thickness of 2 meters.
b. What state is the ice with this density in?
```a. Without the area, I guess I can only guess.
The mass would be 1098.87 kg., due to dividing the weight by gravity.
The volume would be 2x, where x is the area of the glacier in m^2.
the density of the glacier has to be between 800 and 900 kg/m^3.
I'll take a wild guess here; the area of the glacier is 600 meters squared.
After making that calculation, the formula would be 1098.87 / 1200, in kg/m^3.
Thus, the density of the glacier would be 915.7 kg/m^3. (not very close, but good enough)```
`Now, again, since I made a wild guess with the area, the density I got would most likely suggest the ice is glacial ice. If the density was from 400-800 kg/m^3, it would be reasonable to say the ice was firn.`
*shrug* I guess you can ask a question next.
¯\_(ツ)_/¯

Alright:

1. Define dead ice. What is it usually covered with?

2. Approximately what percent of ice does Antarctica discharge through it's ice streams?

3. Approximately how long will this interglacial period last?
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Giantpants
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### Re: Dynamic Planet B/C

SomeoneElse wrote: 1. Define dead ice. What is it usually covered with?

2. Approximately what percent of ice does Antarctica discharge through it's ice streams?

3. Approximately how long will this interglacial period last?
```1. Ice that has been seperated from the moving glacier (not flowing) and has been since covered with drift and moraines.
2. 90% I think
3. Not completely sure but I think somewhere in the realm of 20000 years total given lengths of previous interglacials```
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SomeoneElse
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### Re: Dynamic Planet B/C

Giantpants wrote:
SomeoneElse wrote: 1. Define dead ice. What is it usually covered with?

2. Approximately what percent of ice does Antarctica discharge through it's ice streams?

3. Approximately how long will this interglacial period last?
```1. Ice that has been seperated from the moving glacier (not flowing) and has been since covered with drift and moraines.
2. 90% I think
3. Not completely sure but I think somewhere in the realm of 20000 years total given lengths of previous interglacials```
```1. Yep

2. Yeah again

3. I wrote this queston as kind of a trick question; it's not exactly sure, but your answer (20,000 years) is in the range, so I'll allow it.```
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Giantpants
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### Re: Dynamic Planet B/C

Alright!

1. What are stratugi?
2. From which zone (accumulation or ablation) to which zone does ice flow in a glacier?
3. What are three ways accumulation can occur?
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Sapphire
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### Re: Dynamic Planet B/C

Giantpants wrote:Alright!

1. What are stratugi?
2. From which zone (accumulation or ablation) to which zone does ice flow in a glacier?
3. What are three ways accumulation can occur?
```1. This small snow dune thing
2. Accumulation to ablation
3. Precipitation, wind-blown snow, and avalanching```

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