It completely depends on the situation. If it were a completely general jump (falling on your belly at 120 MPH, and opening at 3,000 feet), freefall would last for 60 seconds. Changing your body position and deployment altitude and increase or decrease that time.
Within 60 seconds.
5 days
2 hours
The general rule for surfacing after scuba diving is to ascend slowly and make a safety stop at approximately 15 feet for 3 to 5 minutes. This allows for the proper off-gassing of nitrogen absorbed during the dive. The total ascent time should typically not exceed 30 feet per minute, and divers should avoid rapid ascents to minimize the risk of decompression sickness. Always refer to dive tables or a dive computer for specific guidelines based on dive depth and time.
The deepest dive to the bottom of Atlantic ocean was 10,994 meters deep. It was done by Don Walsh in a submarine and the dive took 4 hours and 47 minutes.
It will take around 17-19 hours of drive. The distance is around 1800 km depending on which route you take.
hi
Depends on how fast you're going. Not long though.
There is no minimum interval. A dive directly from 70 fsw for 29 minuts can immediately be followed to a dive to 50 fsw for 39 mins, and would be classed as a "Combined Dive" To calculate decompression from this Combined Dive, is by taking the depest depth, (70 fsw), and total time (68 mins), and decompress on an appropriate table. Using the USN repetitive dive times, this varies on the residual nitrogen remaining in solution.
The time it takes for deep-sea divers to surface can vary significantly based on their depth and the type of dive. Typically, a diver may ascend at a rate of about 30 feet (9 meters) per minute, but they often need to include safety stops to avoid decompression sickness, especially if they have been deep diving. As a result, a dive from 100 feet (30 meters) could take around 10-15 minutes to safely return to the surface, including stops. Always, the specific ascent time will depend on the dive profile and safety protocols followed.
depends
Most often, 30 foot dives will take place in open water. There are some dive training centers with dive pools that may be deep enough. If you are planning to free dive (hold your breath at surface, dive, and return), you can go out into open water and try some free diving, shallow at first. Do not do this without a swim/dive buddy. If you want to dive SCUBA, you'll need to get certified first to avoid killing yourself. When ascending after breathing air under pressure, you'll need to do it properly. Free dive or SCUBA dive, I would never recommend diving without a swim/dive buddy with you.