It's B because when you throw something it doesn't go up it slowly descends downward
Answer:
D
Explanation:
If it is of very high intensity it will be 85-100%
Because the specimen is very small with a light microscope
The blades that spin around in the fan, because they are flat and produce work
Answer:
When the starting and ending points are the same, the total work is zero.
Explanation:
option ( D )correct
A force is said to be conservative when the work done by the force in moving a particle from a point A to a point B is independent of the path followed between A and B and is the same for all the paths. The work done depends only on the particles initial and final positions. And when the initial and final position in conservative field are same the work done is said to be zero.