Dynamic Planet B/C

[dish123]

Where can I find information on methods of studying glaciers?

[flembo17]

Where can I find information on methods of studying glaciers?

antarcticglaciers.org and NASA are definitely good places to start

[Sharan.thiru]

Where can I find information on methods of studying glaciers?

antarcticglaciers.org and NASA are definitely good places to start

NOAA is better than NASA since NOAA has more on glaciers rather than NASA

[BennyTheJett]

Anyone know how to get the answer to Q2?

Q1) An unnamed lake was formed from ice melt. Periodically the ice dam holding back the water would
break, resulting in enormous volumes of water suddenly being released. A typical release might result in
the flow of 10 cubic kilometers of water per hour. At this rate, the lake could be entirely drained in two
days. If the lake covered approximately 800 sq. kilometers, which of the following is closest to the
average depth of the lake. For calculation purposes, assume that the lake had a uniform depth.
Answer: 600 meters (this one is easy)

Q2) If the lake in question 50 were losing water at 10 cubic kilometers per hour, by how much would the
water level in a deep canyon rise if the canyon were 0.5 km across at the bottom and the river was
determined to be moving at 36 m/sec. For calculations, assume the canyon walls are vertical, a true “box”
canyon. Pick the answer that is closest to the calculated amount.
Answer: 100 m?? (how do you get that?)

That's odd, is the original depth of the river given to you?

It says its a "box" canyon, so assume cube, making the depth 0.5 km. Just sketch the problem out. You're given a rate of input and output, so you can solve this. I don't know if 100 checks out (too lazy to do the problem), but it's definitely a legitimate question.

[UTF-8 U+6211 U+662F]

Anyone know how to get the answer to Q2?

Q1) An unnamed lake was formed from ice melt. Periodically the ice dam holding back the water would
break, resulting in enormous volumes of water suddenly being released. A typical release might result in
the flow of 10 cubic kilometers of water per hour. At this rate, the lake could be entirely drained in two
days. If the lake covered approximately 800 sq. kilometers, which of the following is closest to the
average depth of the lake. For calculation purposes, assume that the lake had a uniform depth.
Answer: 600 meters (this one is easy)

Q2) If the lake in question 50 were losing water at 10 cubic kilometers per hour, by how much would the
water level in a deep canyon rise if the canyon were 0.5 km across at the bottom and the river was
determined to be moving at 36 m/sec. For calculations, assume the canyon walls are vertical, a true “box”
canyon. Pick the answer that is closest to the calculated amount.
Answer: 100 m?? (how do you get that?)

That's odd, is the original depth of the river given to you?

It says its a "box" canyon, so assume cube, making the depth 0.5 km. Just sketch the problem out. You're given a rate of input and output, so you can solve this. I don't know if 100 checks out (too lazy to do the problem), but it's definitely a legitimate question.

"Box canyon" just means the walls are vertical. It seems that you would need the original depth of the water to figure out how much the water rises, although figuring out the final water level would be easier (I think it's approximately 154 m, although that could be wrong).

[BennyTheJett]

That's odd, is the original depth of the river given to you?

It says its a "box" canyon, so assume cube, making the depth 0.5 km. Just sketch the problem out. You're given a rate of input and output, so you can solve this. I don't know if 100 checks out (too lazy to do the problem), but it's definitely a legitimate question.

"Box canyon" just means the walls are vertical. It seems that you would need the original depth of the water to figure out how much the water rises, although figuring out the final water level would be easier (I think it's approximately 154 m, although that could be wrong).

They're implying that "box" means cube. that is why they made sure everyone saw it.

[UTF-8 U+6211 U+662F]

It says its a "box" canyon, so assume cube, making the depth 0.5 km. Just sketch the problem out. You're given a rate of input and output, so you can solve this. I don't know if 100 checks out (too lazy to do the problem), but it's definitely a legitimate question.

"Box canyon" just means the walls are vertical. It seems that you would need the original depth of the water to figure out how much the water rises, although figuring out the final water level would be easier (I think it's approximately 154 m, although that could be wrong).

They're implying that "box" means cube. that is why they made sure everyone saw it.

I'm not sure that's right... box canyons are a legitimate type of canyon.

[dish123]

im coming from nc..they released the regional test(div b) for dynamic planet, but no answer key? Where can i find it?

[UTF-8 U+6211 U+662F]

im coming from nc..they released the regional test(div b) for dynamic planet, but no answer key? Where can i find it?

If your coach hasn't received it, it's possible that the tournament is not giving them out. If you have the questions though, you can just look the answers up.

[BennyTheJett]

"Box canyon" just means the walls are vertical. It seems that you would need the original depth of the water to figure out how much the water rises, although figuring out the final water level would be easier (I think it's approximately 154 m, although that could be wrong).

They're implying that "box" means cube. that is why they made sure everyone saw it.

I'm not sure that's right... box canyons are a legitimate type of canyon.

I know it is, but the way they accented "box" made me think cube, which would give you a depth measurement. TBH though, I have no idea whether this question is legitimate.