Answer:
The mechanical energy of the helicopter is
.
Explanation:
It is given that,
Mass of the helicopter, m = 3250 kg
Speed of the helicopter, v = 56.9 m/s
Position of the helicopter, h = 185 m
The energy possessed by an object due to its motion is called its kinetic energy. It is given by :


The energy possessed by an object due to its position is called its potential energy. It is given by :


The sum of kinetic and potential energy is called mechanical energy of the system. It is given by :


or

So, the mechanical energy of the helicopter is
. Hence, this is the required solution.
Answer:
Cloud is a condensed from of atmospheric moisture consisting of small water droplets.
Clouds cause rainfall and snow fall.
Different types of clouds are found in the atmosphere. Some main types of them are cirrus, cumulus, nimbus, and stratus. Most clouds are generated by the cooling of air as it rises.
One advantage of a fever is that it can slow down the growth of pathogens by denaturing their proteins.
Answer:
- The process of comparing unknown quantities with known quantities is called measurement .
If it measurement system were not established ,then there may create lots of problem such as: unequal measure ,anyone can get more ,or anyone can get less mass ,so on .