Scuba divers use a homemade depth gauge – a small narrow glass tube sealed at one end.
March 28, 2021 | education
| Scuba divers use a homemade depth gauge – a small narrow glass tube sealed at one end. What part of the tube will be filled with water at a depth of 20 m? (The water temperature is considered constant, atmospheric pressure is normal)
Let’s remember the formula for finding:
PV / T = const;
V2 = 20 m;
Let’s use one more formula:
P2 = Patm + Pwater;
P2 = po * g * h + 101 kPa;
P2 = 1000 * 9.8 * 20 + 101000;
P2 = 196000 + 101000;
P2 = 297000 Pa;
Find P1:
P1 = 101000 Pa;
101000 * V1 = 297000 * V2;
V2 = 0.34 * V1;
Answer: 0.34
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.