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pishuonlain [190]
3 years ago
14

What is energy? Give at least two examples of how you use energy in your everyday life.

Chemistry
2 answers:
Marrrta [24]3 years ago
7 0
The capability or ability to do work is called energy
scZoUnD [109]3 years ago
3 0

Answer:

To walk or run, and to wake up.

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aliina [53]

No i think they can not be

5 0
2 years ago
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Add me if you wanna be friends ( GIRLS ONLY p.s I’m a girl )
IgorC [24]

Answer:

Hey there.

Explanation:

Have a nice day

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2 years ago
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The OAC simulation showed that warm air over a cold current:
vladimir2022 [97]

Answer:

Option B

Transfers energy to the water

Explanation:

Warm air transfers energy to the water when it flows over cold currents. This means that the warm air loses heat energy to the cold currents thus, raising its temperature.

Whenever there is a temperature difference between two bodies in contact with each other, the Fouriers law explains that there is always a transfer of heat from the hotter body to the colder body until they become the same temperature.

Thus, following this, heat will flow from the warm air to the cold currents.

4 0
2 years ago
Place the following transitions of the hydrogen atom in order from longest to shortest wavelength of the photon emitted. Rank fr
gizmo_the_mogwai [7]

Answer:

7 to 4     (higher  \lambda)

5 to 3

3 to 2

4 to 2   (lower  \lambda)

Explanation:

We can use the Rydberg formula which relates the wavelength of the photon emissions to the principle quantum numbers involved in the transition:

\frac{1}{\lambda}=R((\frac{1}{n_1^2})-(\frac{1}{n_2^2}))

with n_1 final n, and n_2 initial n

evaluating for each transition:

7 to 4 \frac{1}{\lambda} = R((\frac{1}{4^2})-(\frac{1}{7^2}))= R(1/16-1/49)=R(0.042)

5 to 3 \frac{1}{\lambda}= R(1/9-1/25)=R(0.071)

4 to 2 \frac{1}{\lambda}= R(1/4-1/16)=R(0.1875)

3 to 2 \frac{1}{\lambda}= R(1/4-1/9)=R(0.139)

Note that the above formula is written for \frac{1}{\lambda}, so lower \frac{1}{\lambda} value obtained involves higher \lambda.

So we should order from lower to higher \frac{1}{\lambda}

7 to 4     (higher  \lambda)

5 to 3

3 to 2

4 to 2   (lower  \lambda)

Note: Take into account that longer wavelength involves lower energy (E=\frac{hc}{\lambda}).

3 0
3 years ago
Whats the difference between hetergeneous and homogeneous?
yanalaym [24]
In Homogeneous, "Homo" means same, so homogeneous means the same nature or kind.

 Heterogeneous is the opposite. It means diverse.
 
A good way to remember is just think of homo as same. And the rest should come to you.

Hope this helps! :)
4 0
2 years ago
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