Definite Articles In French

There are three definite articles in French.

Le (Masculine Singular)
La (Feminine Singular)
L' (Masculine/Feminine- In Front Of A Vowel)

Les (Masculine/Feminine Plural)

Le is used before a masculine noun, la is used before feminine noun and les is used before a plural noun, irrespective of whether it is masculine or feminine. L' is used before a noun starting with a vowel, irrespective of whether it is masculine or feminine.

Examples:

Le stylo (The pen)
La voiture (The car)
L' homme (The man)
Les fleurs (The flowers)

Sentence Examples:

J'achete le stylo (I bought the pen)
Il sauve la fille (He protects the girl)
L'homme est gentil (The man is nice)
Elle aime les caractères pour "The Big Bang Theory" (She likes the characters of The Big Bang Theory)


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Indefinite Articles In French

Indefinite Articles In French

There are three indefinite articles in the French Language:

1. Un (Masculine Singular)
2. Une (Feminine Singular)
3. Des (Masculine/Feminine Plural)

Un is used before a masculine noun, une is used before a feminine noun and des is used before a plural noun, irrespective of whether it is masculine or feminine.

Let us look at some examples:

Un livre (A book)
Une Voiture (A Car)
Des fleurs (Some flowers)

Sentence Examples:

J'ai un stylo. (I have a pen)
Il ya une banane. (There is a banana)
Avez vous des pommes? (Do you have some apples?)

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How To Conjugate ER Verbs In French

Conjugating ER Verbs In French

The technique to conjugate and ER verb is simple. In majority of the cases (regular ER verbs), this is how we do it:

Example: Manger (To Eat)

Je mange ("r" was removed)

Tu manges ("r" was removed and "s" was added)
Il mange ("r" was removed)

Elle mange ("r" was removed)
Nous mangeons ("r" was removed and "ons" was added)
Vous mangez ("r" was removed and "z" was added)
Ils mangent ("r" was removed and "nt" was added)
Elles mangent ("r" was removed and "nt" was added)

Similar examples: parler (to speak), donner (to give), detester (to hate), aimer (to like), adorer (to love) etc

There are some exceptions, these exceptions are the irregular ER verbs.

Example: Aller (To Go)

Je vais
Tu vas

Il va

Elle va

Nous allons

Vous allez

Ils vont

Elles vont

Newton's Third Law Of Motion

Newton's third law of motion states that for every action, there is an equal and opposite reaction. This means that whenever a force is acting on an object, an equal and opposite force is reverted back. This normally leads to a situation where the two forces cut each other out resulting in an equilibrium.

Examples Of Newton's Third Law Of Motion

1. Wall Push- When you push against a wall, the wall exerts and equal and opposite force to you, thereby pushing you farther from the wall. 

2. Slap- This funny example is an easy one to understand. When you slap a person on their cheek, their cheek hurts but so does your hand. This happens because their cheek exerts a force back on your hand.

3. A Stable Book- When a book is present on a table, there is a force of attraction between the book and the earth which is cut out by the reaction force of the table on the book. This is a very good example of an object being in equilibrium after Newton's third law of motion is applied.

The examples above prove that whenever a force is applied on something/someone, then an equal and opposite force is applied back.

The Basic Concept Of Marginal Utility

Utility is the pleasure and usefulness derived from a product. Total utility is the total utility that we derive from a product.

Marginal utility, as the name suggests, is the extra utility that is derived from a product. If a person eats 3 burgers, the marginal utility would be the utility that she derived from the last two burgers.

It is normally considered that the marginal utility declines if a person consumes or makes use of the same product again and again because she tends to get bored or used to the product, thereby receiving less pleasure from it. Taking up the burger example again, if a person continues to eat the burgers one after the other, then she will get bored of eating them because she will get used to the taste.

Common example of taste perception

First burger: Wow, tasty, Second Burger: Yum, Third Burger: Good, Fourth Burger, Nice, Fifth Burger: Hmm, Fine, Sixth Burger: Uh, bad."

If a person continues to eat burgers one after the other (which is unlikely) then a point will come when the person falls sick and negative utility will occur.

An easy to understand marginal utility example would be that of thirst. If a person is very thirsty and drinks water, then the utility gained would be high. However, if the person was not thirsty and drinks water, then the utility gained would be very less.

The table below shows us how marginal utility decreases when we consume a new product.

The table shows us that that the marginal utility is declining as we keep on consuming the same product again and again. If this table was continued below then it would result in negative marginal utility which would result in negative total utility.

Important Note: The usefulness and pleasure derived from a product i.e. utility can vary from person to person and from product to product.