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3 years ago

Why it is colder at the top of the mountain than it is at the bottom of the mountain even though heat rises?

1 answer:

4 0

It is colder, BECAUSE:

As we go up in the atmosphere, air pressure continually becomes less. That means the rising air is expanding. And a characteristic of any gas is that it is cooled by expansion. So the draft of warm air that starts rising from the earth's surface continually cools itself as it rises.

Hope this answers your question!

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What are two scientific issues that involve ethics

Lesechka [4]

1. Genetic engineering (bioengineering)
2. Cloning
3. Stem Cell research
4. GMO production
To name a few

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3 years ago

I need someone to write me an essay, please. Describe the different types of cellular transport and explain how the structure of

bearhunter [10]

Answer:

Some cells function best at a pH of 5, while others are better at pH 7. ... control what crossed their membranes, either no molecules would make it across, ... Various types of cell transport are summarized in the concept map in ... Figure 5.7.5 demonstrates the specific outcomes of osmosis in red ...

Explanation:

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1 year ago

At what stage of human development would you expect to first see a beating heart?

IRINA_888 [86]

at what stage of human development wuold you exept to first see abeating heart? the answer is ç

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3 years ago

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Wood deposits recovered from an archaeological site contain 36% of the C-14 they originally contained. How long ago did the tree

Veseljchak [2.6K]

Answer: It was obtained 8515 years ago

Explanation:

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant

a - x = amount left after decay process

a) to find the rate constant:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

$t_{\frac{1}{2}}=\frac{0.693}{k}$

$k=\frac{0.693}{5760}=0.00012years^{-1}$

b) for completion of 36% of reaction

$t=\frac{2.303}{k}\log\frac{100}{36}$

$t=\frac{2.303}{0.00012}\log\frac{100}{36}$

t = 8515 years

The time was 8515 years.

3 0

3 years ago

What animals have names that start with S? My sister needs names of animals that start with the letter S. thank you! :)

Colt1911 [192]

Here are some of the animals that have names that start with S: seal, sheep, skunk, sloth, sparrow, squirrel, swan, salamander, scorpion, serval, snake, spider, stork, etc.
Hope this helps :)

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3 years ago

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