Answer:
There are six widely accepted conditions for hurricane development:
1. The first condition is that ocean waters must be above 26 degrees Celsius (79 degrees Fahrenheit). Below this threshold temperature, hurricanes will not form or will weaken rapidly once they move over water below this threshold. Ocean temperatures in the tropical East Pacific and the tropical Atlantic routinely surpass this threshold.
2. The second ingredient is distance from the equator. Without the spin of the earth and the resulting Corioles force, hurricanes would not form. Since the Corioles force is at a maximum at the poles and a minimum at the equator, hurricanes can not form within 5 degrees latitude of the equator. The Corioles force generates a counterclockwise spin to low pressure in the Northern Hemisphere and a clockwise spin to low pressure in the Southern Hemisphere.
3. The third ingredient is that of a saturated lapse rate gradient near the center of rotation of the storm. A saturated lapse rate insures latent heat will be released at a maximum rate. Hurricanes are warm core storms. The heat hurricanes generate is from the condensation of water vapor as it convectively rises around the eye wall. The lapse rate must be unstable around the eyewall to insure rising parcels of air will continue to rise and condense water vapor.
4. The fourth and one of the most important ingredients is that of a low vertical wind shear, especially in the upper level of the atmosphere. Wind shear is a change in wind speed with height. Strong upper level winds destroy the storms structure by displacing the warm temperatures above the eye and limiting the vertical accent of air parcels. Hurricanes will not form when the upper level winds are too strong.
5. The fifth ingredient is high relative humidity values from the surface to the mid levels of the atmosphere. Dry air in the mid levels of the atmosphere impedes hurricane development in two ways. First, dry air causes evaporation of liquid water. Since evaporation is a cooling process, it reduces the warm core structure of the hurricane and limits vertical development of convection. Second, dry air in the mid levels can create what is known as a trade wind inversion. This inversion is similar to sinking air in a high pressure system. The trade wind inversion produces a layer of warm temperatures and dryness in the mid levels of the atmosphere due to the sinking and adiabatic warming of the mid level air. This inhibits deep convection and produces a stable lapse rate.
6. The sixth ingredient is that of a tropical wave. Often hurricanes in the Atlantic begin as a thunderstorm complex that moves off the coast of Africa. It becomes what is known as a midtropospheric wave. If this wave encounters favorable conditions such as stated in the first five ingredients, it will amplify and evolve into a tropical storm or hurricane. Hurricanes in the East Pacific can develop by a midtropospheric wave or by what is known as a monsoonal trough.
Explanation:
Answer:
type in English please ._. im sorry if u cant
Explanation:
To maximize its profit a monopolistically competitive firm would set marginal revenue to be equal to marginal cost.
<h3>What is a monopolistically competitive firm?</h3>
Monopolistically competitive firm is the description of the type of firm that exists in the market that have other firms that are having and offering similar products in the market.
The products may be similar but they are not identical. As a rule this type of market has to set MR = MC.
The difference between these firms and the true Monopoly is that this kind of firmss do not have the power to curtail supply so as to increase the prices in the market so they can raise their profits.
They do not have barriers to entry and the kind of profits that are made here are what we call normal profits. They are not price takers.
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The major product of this reaction which is the oximercuration - demercuration reaction is explained.
<h3>What is a chemical reaction?</h3>
It should be noted that a chemical reaction simply means a process that leads to the transformation of a as of chemical substances to another chemical substance.
The steps in the reaction include:
- The nucleophilic bond attack.
- The formation of oxonium ion.
- Deprotonation of the oxonium ion.
- NaBH4 replaces the acetoxy mercury.
Here, alkene is converted into alcohol.
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Answer: 1:4 25%
Explanation:
Purple petal color in pea plants is dominant to white petal color. Two heterozygous pea plants are crossed.
What is the ratio of the offspring with white petals to the total number of offspring?
21
⇒ 1:
3323
⇒ 4
Express this in a percentage.
3
⇒ 25%
