A submersible vehicle is in a lake at a depth of 26.8 m. What is the absolute pressure (in Pa) at this depth? The density of the water in the lake is 1.00 x 103 kg/m3, and the air above is at a pressure of 101.3 kPa. Pa (b) The submersible vehicle has a circular window with a diameter of 42.0 cm. What force (in N) is exerted by the water on the window of the vehicle at the depth from part (a)? (Enter the magnitude.) N

A hot-air balloon consists of a basket hanging beneath a large envelope filled with hot air. A typical hot-air balloon has a total mass of 545 kg, including passengers in its basket, and holds 2.55 x 103 m3 of hot air in its envelope. If the ambient air density is 1.25 kg/m3 , determine the density of hot air inside the envelope when the balloon is neutrally buoyant. Neglect the volume of air displaced by the basket and passengers.

A dolphin is in ocean at a depth of 29.1 m. What is the absolute  pressure (in Pa) at this depth? The density of the water in the ocean is 1.00 ✕ 103 kg/m3, and the air above is at a pressure of 101.3 kPa.

The pressure difference between the interior and exterior of an air bubble in water is 25.5 torr. The water surface tension is 73 mN/m, what is the diameter of the air bubble? 43.0 mm 11.5 mm O86.1 μm 43.0 μm 86.1 mm

A tall graduated cylinder contains 7 cm of oil (density of 825 kg/m3kg/m3) on top of 20 cm of water (density of 1000 kg/m3kg/m3). The cylinder is open to the air. What is the pressure in the water, 3 cm above the bottom of the cylinder? (in Pa)  1.0323×105  1.0335×105  1.0353×105  1.0294×105  1.0157×105

(a) A submersible vehicle is in a lake at a depth of 26.0 m. What is the absolute pressure (in Pa) at this depth? The density of the water in the lake is 1.00 × 103 kg/m, and the air above is at a pressure of 101.3 kPa. Pa (b) The submersible vehicle has a circular window with a diameter of 38.0 cm. What force (in N) is exerted by the water on the window of the vehicle at the depth from part (a)? (Enter the magnitude.) Need Help? Read It

A person is diving in a lake in the depth of h = 9.5 m. The density of the water is rho = 1.0 x10^3 kg/m3. The pressure of the atmosphere is P0 = 1.0 x 10^5 Pa. The surface area of the top of the person's head is A = 0.0385 m^2. (a) Express the absolute pressure at the depth of h, P, in terms of P0, ?, and h.(b) Calculate the numerical value of P in Pa. (c) Express the magnitude of the force exerted by water on the person's head F at the depth h in terms of P and A.  (d) Calculate the numerical value of F in N.

A box has a length of 1.3 cm, a width of 6.4 cm, and a height of 3.2 cm. Its mass is 9.8 kg. The box sits at rest on a horizontal floor.  What is the pressure of the box on the floor?

Water supplied to a house by a water main has a pressure of 3.3 × 105 N/m2 early on a summer day when neighborhood use is low. This pressure produces a flow of 20.5 L/min through a garden hose. Later in the day, pressure at the exit of the water main and entrance to the house drops, and a flow of only 8.2 L/min is obtained through the same hose. Part (a)  What pressure is now being supplied to the house, assuming resistance is constant, in pascals?  Part (b)  By what percent did the flow rate in the water main increase in order to cause this decrease in delivered pressure? The pressure at the entrance of the water main is 4.9 × 105 N/m2, and the original flow rate was 210 L/min.  Part (c)  How many more users are there in the afternoon, assuming each would consume 20.5 L/min in the morning and 8.2 L/min in the afternoon?

Problem 3: A person walks around in high-heeled shoes. Their weight is momentarily placed on one heel which has an area of 1.5 cm². If their mass is 60 kg, what is the pressure exerted by their heel on the floor in pascals?