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What is frictional force?

Answer: Frictional force refers to the force generated by two surfaces that contacts and slide against each other. Friction is the force that... View Article

What is the convex lens?

Answer: Convex lens converges a straight beam of light. This lens is thicker at the centre and gets thinner as we move towards the edges. When... View Article

What is in the oceans?

Answer: An ocean is a body of water that composes much of a planet’s hydrosphere. The ocean contains the majority of Earth’s water.... View Article

What are exponents?

Answer: An exponent of a number represents the number of times the number is multiplied to itself. If 8 is multiplied by itself for n times,... View Article