food and nutrition

Posted by on Dec 17, 2021 in Physics | 0 comments

2. NUTRTIONAL NEEDS 

We need food to obtain nutrients and to satisfy a rage of needs.

-Structural: we need proteins to help us grow and to maintain our bodies.

-Providing energy: we need carbohydrates and lipids in order to do sports or to move about. 

-Regulatory: we need a range of minerals for our bodiesto function properly.

2.1. STRUCTURAL NEEDS

The most important structural nutrients are proteins, although certain lipids are also important, such as the ones that form cell membranes, as are certain

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f

Posted by on Dec 16, 2019 in Physics | 0 comments

Q # 1. The potential is constant throughout a given region of space. Is the electric field zero or non zero in

this region? Explain.

Ans. The electric field intensity is described by the relation:

According to the relation, the electric field is negative gradient of electric potential. If the electric

potential is constant throughout given region of space, then change in electric potential , hence .

Q # 2. Suppose that you follow an electric field line due to a positive point charge. Do electric field

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Fisica

Posted by on Dec 10, 2019 in Physics | 0 comments

A 5.0-kg object slides down a surface inclined at an angle of 30o from the horizontal. Friction may be neglected. The total distance moved by the object along the plane is 10 meters. The work done on the object by the normal force exerted on the object by the surface is most nearly

·0 kJ 


An object moves halfway around a circle of radius R. An inward radial force of magnitude F is The work done on the object by the radial force being exerted on it is

·zero 


A person exerts a constant force

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gr

Posted by on Oct 24, 2019 in Physics | 0 comments

2.4. Market profitability analysis. According to Porter (1985), the attractiveness of a market or an industry is measured by the long-term return on investment of the average firm. This in turn depends on five factors that influence profitability: the intensity of competition, the existence of potential competitors who will enter if profits are high, substitute products that will attract customers if prices become high, the bargaining power of customers and suppliers. Competitors: The intensity
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dcv

Posted by on Jun 13, 2018 in Physics | 0 comments

Rational Choice Perspective • What does it mean when a decision is rational? • Someone weighs the costs and benefits of engaging in some behavior and when the benefits outweigh the costs, we engage in said behavior.• f(U) = individuals getting the most out of a situation with the least effort.
Assumptions of Rational Choice Perspective • An individual has precise information about exactly what will occur under any choice made. • An individual has the cognitive ability to weigh every choice
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Curricular

Posted by on Jun 11, 2018 in Physics | 0 comments

Journalism and media: Hot off the press

2b Read the article again and answer the following questions. 1.What does the writer find upsetting in written English these days? The technical skill is that of creating clear and succinct sentences, which any profession should inculcate. This can be taught and should be part of any core curriculum. Its absence from so much of written English nowadays, from users’ manuals to student exam questions to government white papers, is deplorable. 2.What does the

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