# Science

A circular hatch in the hull of a submarine has a radius of 40.0 cm. The submarine is 850.0 m under water. If atmospheric pressure above the ocean is 1.01 x 105 Pa and the air pressure inside the submarine is 1.31x 105 Pa, what net force is exerted on the hatch? (ρsw = 1025 kg/m3)

1. 👍
2. 👎
3. 👁
1. Net force = (outside force) - (inside force)
= (Area)*[(outside pressure) - (inside pressure)]

Outside pressure = (psw*g*depth) + Po

Area = pi*(0.40)^2 m*2

Po = sea level atmospheric pressure = 1.01*10^5 Pa

1. 👍
2. 👎
2. pressure=100N/20M/S

1. 👍
2. 👎

## Similar Questions

A submarine is travelling parallel to the surface of the ocean at a depth of 626m. It begins a constant ascent in order to reach the surface after travelling a distance of 4420m. The ascent takes 35mins. A.) what angle of ascent

2. ### Math

A submarine submerged at a depth of -15m, dives 20m more .what is the new depth of the submarine? solution with explain

3. ### math

A submarine descends from sea level to the entrance of an underwater cave. The elevation of the entrance is -120 feet. The rate of change in the submarine's elevation is no greater than -12 feet per second. Can the submarine reach

4. ### Algebra

The volume of a right circular cylinder (think of a pop can) is jointly proportional to the square of the radius of the circular base and to the height. For example, when the height is 10.62 cm and the radius is 3 cm, then the

1. ### Maths

A circular garden of radius 25m has a concentric circular fountain of radius 3m.find the area of the garden available for the children to playin.

2. ### math

A submarine is traveling underwater when its pilot decides to dive deeper into the water. The depth, D, in meters of the submarine t minutes after the dive is represented by the function D(t)=70+45t. What is the depth of the

3. ### math

During a training exercise, a submarine travels 16 km/h on the surface and 10 km/h underwater. if the submarine traveled a distance of 160km in 12.5h, how long was it underwater?

4. ### Physics

5. A circular pizza of radius R has a circular piece of radius R/3 removed from one side. The center of mass of the pizza with the hole is at a distance of_____ from the center of mass of the original pizza. A. R/20 B. R/2 C. R/30

1. ### physics

A newly-discovered plant, "Cosmo", has a mass that is 4 times the mass of the Earth. The radius of the Earth is Re. The gravitational field strength at the surface of Cosmo is equal to that at the surface of the Earth if the

2. ### AP PHYSICS HELP

A 1.47 x 10^6 kg steel hull has a base that is 2.5 x 10^3 m^2 in area. If it is placed in sea water (density= 1025 kg/m^3), how deep does the hull sink?

3. ### Science

A force of 750 N keeps a 70-kg pilot in circular motion if he is flying a small plane at 35m/s in a circular path.What is the radius of the circular path?

4. ### Calculus

Starting at midnight, a 10 foot radius circular pond freezes inward from the outer edge at a rate of 4 inches per hour. How fast is the open area shrinking at when the radius is 9 feet? (Note: if I'd said "at 3am" instead of "when