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4 years ago

How are circulating air motions different in stable and unstable air?

Chemistry

2 answers:

Juli2301 [7.4K]4 years ago

6 0

When air is unstable, circulating motions are strong. When air is stable, circulating motions are weak.

tester [92]4 years ago

5 0

stability describes whether circulating air motions will be strong or weak. when air is unstable circulating motions are strong during stable conditions circulating motions are weak. ... ground level air is warmer then atmosphere air.as the warm air rises it cools and forms tall clouds.this produces a thunder storm.

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Create your own Model of an Atom. You may choose any element you would like to be represented by your model of an atom. Then pho

mart [117]

Here this might help you added the website link:

https://phet.colorado.edu/sims/html/build-an-atom/latest/build-an-atom_en.html

3 0

3 years ago

How is an athlete's body different from a healthy body? Discuss what you learned in class today.

Ronch [10]

Answer:

Lower Heart Rate

Athletes' heart rates tend to be lower than heart rates of non-athletes. A low resting heart rate is generally a sign of good cardiovascular fitness and efficiency. A well-trained athlete may have a normal resting heart rate of only 40 beats per minute, compared with the average heart rate that ranges from 60 to 100 beats a minute.

Lower Disease Risk

Athletic types may have better overall health and be less apt to develop certain diseases. Regular exercise boosts your immune system and lowers the risk of serious health conditions such as cancer and heart disease. Physical activity can also reduce the risk of type 2 diabetes and osteoporosis while helping to manage cholesterol levels and blood pressure. You gain about two hours of additional life expectancy for each hour of regular exercise, according to the American Heart Association.

Psychological Effects

Athletes may have better mental clarity and focus than non-athletes. Exercise increases the flow of oxygen, which has a direct impact on brain function, explains the American Heart Association. Exercise can help improve your memory and reduce negative feelings, such as anger, tension, anxiety and depression.

A comprehensive study of the academic performance of North Carolina high school student-athletes in North Carolina over a three-year period attests to the positive psychological effects of athletic capabilities. Researchers discovered obvious differences between athletes and non-athletes. The study of nearly 127,000 high school students found dropout rates were lower and grade point averages were higher in students who participated in sports. The study was led by Dr. Roger Whitley in collaboration with the North Carolina High School Athletic Association.

Motivated by Excellence

Athletes, especially competitive athletes, have high ambitions. It's a trait that allows them to persevere through setbacks and failures and to come out the other side stronger. Athletes are highly motivated individuals who set their sights on a prize and are single-minded in their pursuit of excellence. They are propelled by passion to become the best they can be and the benefits of that inner drive are a higher level of self-esteem and confidence.

Explanation:

4 0

3 years ago

When 21.5 g of CH4 gas reacts with 387.5 g O2 gas, how much CO2 is formed?

Doss [256]

Answer:

Mass = 58.96 g

Explanation:

Given data:

Mass of CH₄ = 21.5 g

Mass of O₂ = 387.5 g

Mass of CO₂ formed = ?

Solution:

Chemical equation:

CH₄ + 2O₂ → CO₂ + 2H₂O

Number of moles of CH₄:

Number of moles = mass / molar mass

Number of moles = 21.5 g/ 16 g/mol

Number of moles = 1.34 mol

Number of moles of O₂ :

Number of moles = mass / molar mass

Number of moles = 387.5 g/ 32 g/mol

Number of moles = 12.1 mol

now we will compare the moles of CO₂ with O₂ and CH₄.

O₂ : CO₂

2 : 1

12.1 : 1/2×12.1 = 6.05 mol

CH₄ : CO₂

1 : 1

1.34 : 1.34

Number of moles of CO₂ produced by CH₄ are less thus it will limiting reactant.

Mass of CO₂:

Mass = number of moles × molar mass

Mass = 1.34 mol × 44 g/mol

Mass = 58.96 g

8 0

3 years ago

What bias conditions must be present for the normal operation of a transistor amplifier? A. The emitter-base junction must be fo

natali 33 [55]

The answer would be A. which says the emitter- base junction must be forward biased, and the collector- base junction must be reverse biased.

8 0

3 years ago

The rate of reaction was measured during a chemical reaction. After the first 3 seconds, the rate of reaction was 1.8 x10−6 M/s.

Slav-nsk [51]

The question is incomplete, the complete question is;

The rate of reaction was measured during a chemical reaction. After the first 3 seconds, the rate of reaction was 1.8 x10−6 M/s. Which of the following would you expect after another 3 seconds? a

The rate would be higher, and the concentration of reactants would be lower.

The rate would be higher, and the concentration of reactants would be higher.

The rate would be lower, and the concentration of reactants would be lower.

The rate would be lower, and the concentration of reactants would be higher.

Answer:

The rate would be lower, and the concentration of reactants would be lower.

Explanation:

The rate of reaction refers to how quickly or slowly the reactants disappear or the products appear in a given reaction. The rate of reaction depends on the concentration of the reactants. Thus, as concentration decreases with time, the rate of reaction decreases accordingly.

Therefore, reaction rates tend to decrease with time since the concentration of the reactants decrease with time as the reactants are being converted into products. Thus after three seconds, the rate would be lower, and the concentration of reactants would be lower. Hence the answer above.

8 0

3 years ago