Physics
In which of the following cases, kinetic energy is being used in performing work ?

Driving a car to cover a distance
Paddling the bicycle to cover a distance
Wind mill grinding wheat grain
Rowing a boat in the lake

ANSWER DOWNLOAD EXAMIANS APP

Physics
An egg sinks in soft water but floats in a concentrated solution of salt because

The density of salt solution exceeds the density of eggs
Water has high surface tension
Albumin dissolves in salt solution and egg becomes lighter
Egg absorbs salt from the solution and expands

ANSWER DOWNLOAD EXAMIANS APP