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Simuk A.
Assistant professor and part time tutor at iit-jee coaching institute
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Question:

On Saturday afternoon, Armand sent m text messages each hour for 5 hours, and Tyrone sent p text messages each hour for 4 hours. Which of the following represents the total number of messages sent by Armand and Tyrone on Saturday afternoon? A) 9mp B) 20mp C) 5m+4p D) 4m+5p

Simuk A.

Total Armand messages = 5*m=5m Total Tyrone messages = 4*p= 4p So, combined messages= 5m+4p

Electrical Engineering
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Question:

Define Coulomb's law?

Simuk A.

Coulomb's law states that: The magnitude of the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them. The force is along the straight line joining them.

Physics
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Question:

How are Newton's laws actually helpful in life?

Simuk A.

Newton's law is very important because they tie into almost everything we see in everyday life. These laws tell us exactly how things move or sit still, like why you don't float out of bed or fall through the floor of your house. Newton's laws control how cars work, how water flows, how buildings don't fall down, and basically how everything around us moves. It isn't always obvious how important these laws are because to use them in complicated situations like getting ready for school, you need to know a lot of things, like the exact shape of your tube of toothpaste, how you squeeze on it, and what the toothpaste is made of. Newton's laws speak very generally all forces, but to use them for any specific problem, you have to actually know all the forces involved, like gravity, friction, and tension.

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