Question

how long the air will last at 20 ft

Answer 1

??

Answer 2

• Suppose a tank has enough air to last 60 min at the surface. How long will it
last at a depth of 99 ft? (Th e pressure is 4 atm, or 4 times as great.)
• Make a table showing how long the air will last at 0 ft, 20 ft, 33 ft, 40 ft, 50 ft,
66 ft and 99 ft.

Answer 3

i already got the 1st part i need help with the 2nd part

Answer 4

naa sorry :/