the answer your looking for is Optical instrument.
Is there any chemical names listed ?
First off, you need to know the weight of the projectile, lift and drag coefficients something like a high Reynolds number is preferred, then use the gravitational constant of 9.8 meters per second squared those would be a good start to get closer to your goal
Answer: I am getting a result around the 54,800 area, so I am selecting the 55,000 HP answer.
' C ' is the only correct statement on the list. We don't know anything about diagram-x or diagram-y because we can't see them.
