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

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

ANSWER DOWNLOAD EXAMIANS APP

Physics
Which one of the following statements with regard to Jet stream, an upper level tropospheric wave, is not correct?

It is narrow band of high-velocity wind.
In summer, the polar front jet achieves its maximum force.
Jet streams are typically continuous over long distances.
It follows the wave path near the tropopause at elevations of 8 km to 15 km.

ANSWER DOWNLOAD EXAMIANS APP