Question

A truck weighing 1000 N changes its speed from 36 km/hr to 72 km/hr. in
2 minutes. Calculate (a) the work done by engine (b) its power (g = 10 m/s²)​

Answer 1

Answer:

HERE IS YOUR ANSWER

Explanation:

Answer 2

Answer:

Hey!!!

These samples were then kept under different conditions as below : <br> (a) Both the samples are kept under a fan. ... Since fan helps in the fast movement of the air, water will get more opportunity to evaporate under a fan than inside a cup board. In this case, the outside air will not come in contact with water.