The bullet would either hit or miss the target, depending on how good the aim of the first skydiver was. Since the shooter was in free fall, he would be pushed back and probably begin to rotate rapidly.
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Nothing would happen.
A good pistol for a beginner would be a 22 cal. pistol. The ammo is cheap to purchase and this will allow you to get lots of practice without breaking the bank. A 357 Magnum is another good choice.
Only if they have a heart attack, but not likely.
Acceleration due to gravity is 9.8m/s/s, which is the same as 9.8m/s2. An acceleration of 9.8m/s/s means that with each passing second, the velocity of the skydiver increases by 9.8m/s. Therefore, after two seconds. a skydiver's velocity would be 19.6m/s. The acceleration will continue at 9.8m/s/s until the skydiver reaches terminal velocity, at which point the weight of the skydiver and the air resistance will be balanced, so the net force acting on the skydiver will be zero, at which point there will be no further acceleration.
Where do you come up with 62 miles? That's in excess of 300,000', pretty much outside the atmosphere. At that altitude the skydiver would exhilarate to well in excess of the speed of sound. The highest skydive was at 108,000'.
The 9mm pistol would have the higher decibel rating.
in danger
You will either live or die, depending on where you got shot. Usually, it ends in a lot of pain, and blood would be spattered everywhere around you.
Nina is another way to say 9mm handgun; so "riding with that Nina" would be carrying your pistol on you.
It's pretty average. I would buy another pistol whenever possible, but if your stuck with it, don't worry.
There is only a subjective answer to this question. To try and be speciffc, a pistol where the breach can be locked in the closed position would be about as quiet as you can get. An example of this would be a Thompson Center Contender single shot pistol. Another requirement for a successfully "silent" pistol would be a subsonic cartridge. This could be either a naturally subsonic cartridge, such as the .45 ACP or 9x17mm/.380 ACP, or reduced loadings of a naturally supersonic cartridge to make it travel at subsonic speeds.