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Maru [420]
3 years ago
7

What is the need to achieve population inversion​

Engineering
1 answer:
notka56 [123]3 years ago
3 0

Explanation:

Population inversion is a process of achieving more electrons in the higher energy state than the lower energy state. In order to achieve population inversion, we need to supply energy to the laser medium. The process of supplying energy to the laser medium is called pumping.

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An ideal fluid flows through a pipe made of two sections with diameters of 1.0 and 3.0 inches, respectively. The speed of the fl
geniusboy [140]

Answer:

(\frac{r_1}{r_2})^2=\frac{1}{9}

Explanation:

From the question we are told that:

Diameter 1 d_1=1.0

Diameter 2 d_2=3.0

Generally the equation for Radius is mathematically given by

At Diameter 1

r_{1}=\frac{1}{2} inch

At Diameter 2

r_{2}=\frac{3}{2} inch

Generally the equation for continuity is mathematically given by

 A_1V_1=A_2V_2

Therefore

(\frac{r_1}{r_2})^2=(\frac{1/2}{3/2})^2

(\frac{r_1}{r_2})^2=\frac{1}{9}

5 0
3 years ago
The data shows that recently the size of the raccoon population decreased. How will the decrease in the raccoon population affec
LenaWriter [7]

Answer: Increase in the population of lower organisms.

Explanation: Raccoons are mesopredators found in the middle levels of food webs and have critical impacts on the dynamics of many other species. Thus, they greatly contribute to the functioning of the ecosystem.

They are naturally equipped to checkmate the population size of other organism that are below them (i.e., their preys) in the food web. They are; predators, pathogen carriers (such as rabies), and competitors, as they compete with some specialist in the food web.

Hence, the decrease in the population of raccoons will lead to the increase in the population size of lower organisms they prey on in the food web or chain.

3 0
3 years ago
Can somebody please help me
astraxan [27]

Answer:

C. 420 x 594 millimeters

6 0
3 years ago
Why do cars have a push start button???​
QveST [7]
To be more easy for them
8 0
3 years ago
If a sky diver decides to jump off a jet in Arkansas
andrew-mc [135]

Answer:

The answer to this question can be defined as follows:

Explanation:

The sky driver began his sky journey from Arkansas, drove across the Tennessee River then landed in North Carolina. He returned to both the north in the very same direction. He began with NC, traveled through Tennessee, eventually lands in Arkansas. But North Carolina has been in the third state on which skydiver was traveling over, and It's also more than 700 miles from Arkansas to the NC.

6 0
3 years ago
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