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3 years ago

Discuss one way in which global warming aggravates the effect of radiation

1 answer:

3 0

The energy that then radiates out from the surface, longwave radiation, is trapped by the same greenhouse gases, warming the air, oceans, and land. This process, appropriately dubbed “the greenhouse effect,” is how global warming occurs.

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Meteoroid is the term used to describe a solid particle that

LuckyWell [14K]

Is drifting around in space

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3 years ago

Two trains are traveling on the same track and in the same direction. The first train, which is behind the second train, blows a

Andrews [41]

Answer:

37.545 m/s

Explanation:

f' = Actual frequency of horn = 269 Hz

f = Observed frequency of horn = 290 Hz

v = Speed of sound in air = 343 m/s

$v_0$ = Speed of second train = 13.7 m/s

$v_s$ = Speed of first train

From Doppler effect we have

$f=f'\dfrac{v-v_0}{v-v_s}\\\Rightarrow v_s=v-\dfrac{f'}{f}(v-v_0)\\\Rightarrow v_s=343-\dfrac{269}{290}(343-13.7)\\\Rightarrow v_s=37.545\ m/s$

The speed of the first train is 37.545 m/s

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3 years ago

a.Calculate the average speed (in km/h) of Charlie, who runs to the store 4 kilometers away in 30 minutes. b.Calculate the dista

sveta [45]

as per the question charlie runs to the store which is 4 km away

hence the total distance covered [S] is 4 km

he takes 30 minutes to reach the store.

hence the total time taken [t] = 30 minutes=0.5 hour

We have to calculate the average speed.

the average speed[v]= $=\frac{S}{t}$

= $\frac{4 km}{0.5 hour}$

=8 km/hour

then we have to calculate the total distance traveled by charlie in 1 hour.

the distance covered S= $V_{avg} *t$

=8 km/hour ×1 hour

=8 km

Hence the average speed of charlie is 8 km/hour and he covers a distance of 8 km in 1 hour.

7 0

3 years ago

Which is most likely a covalent compound? LiF MgS NH3 CaCl2

Artemon [7]

Answer:

NH₃

Explanation:

The compound that is covalent from the given choices is NH₃.

Covalent compounds are usually formed between two atoms with similar values of electronegativities such that the difference is very small or zero.

This bond type involves the sharing of electrons between two atoms with similar electronegativities.
Nitrogen and hydrogen forms stable configuration that are isoelectronic with noble gases by sharing their valence electrons.
The 3 hydrogen electrons are enough to make nitrogen isoelectronic with neon.
Also, the nitrogen with 3 lone pairs of electrons provides the bonding hydrogen with needed electrons to attain a structure similar to helium.

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2 years ago

Read 2 more answers

Which statement describes Redi’s experiment, which helped disprove spontaneous generation?

Kay [80]

Answer:

He examined covered and uncovered meat to determine that maggots came from eggs.

In other other words A

5 0

3 years ago

Read 2 more answers

Discuss one way in which global warming aggravates the effect of radiation​

Discuss one way in which global warming aggravates the effect of radiation