B. the Sun appears lower in the sky than during other seasons.
D. the Sun rises in the Northeast and sets in the Northwest.
On the northern hemisphere the north is to the left, the Sun rises in the east (far arrow), culminates in the south (to the right) while moving to the right and sets in the west (near arrow). Both rise and set positions are displaced towards the north in summer, and towards the south for the winter track.
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The amount of the 30 gram-sample that will remain after 270 years is 6.61 grams
<h3>How to determine the number of half-lives </h3>
We'll begin by obtaining the number of half lives that has elapsed. This can be obtained as follow:
- Half-life (t½) = 96 years
- Time (t) = 270 years
- Number of half-lives (n) =?
n = t / t½
n = 270 / 99
n = 2.8125
<h3>How to determine the amount remaining </h3>
- Original amount (N₀) = 30 grams
- Number of half-lives (n) = 2.8125
- Amount remaining (N) =?
The amount remaing can be obtained as follow:
N = N₀ / 2^n
N = 30 / 2^2.8125
N = 6.61 grams
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The simple answer is, ALWAYS have an evacuation plan.
If in an earthquake stay away from cabinets, climb under a table or chair, and do the right sitting position (Hold on to your neck position.)
Hope I helped, would love if you left me a thanks! Thanks :)
I still wish I could help but I'm in 6th grade
The answer is RADON for sure
