Physics
When a pail of water is swung in a vertical circle, the water does not fall out at the top of the loop when the speed is

Below a certain minimum value irrespective of amount of water in the pail
Above a certain minimum value irrespective of amount of water in the pail
Below a certain minimum value depending on amount of water in the pail
Above a certain minimum value depending on amount of water in the pail

ANSWER DOWNLOAD EXAMIANS APP

Physics
It is more difficult to walk on a sandy road than on a concrete road because

the friction between sand and feet is more than that between concrete and feet.
sand is soft and concreter is hard.
the friction between sand and feet is less than that between concrete and feet.
the sand is grainy but concrete is smooth.

ANSWER DOWNLOAD EXAMIANS APP