10 cm 10 cm Water Air E Air 10 cm D 10 cm 5 cm 5 сm A Hg Hg F FF Hg 10 cm 10 cm G For the given tank find the pressures at points A, B, C and at two air cavities D and E. Specific gravity of mercury (Hg) is 13.6. Rectangular gate FG has a width of 40 cm and is hinged along G. The gate is hold by horizontal force Fr applied at point F. Calculate the force FF required for equilibrium.

Atmospheric pressure is about 1.00 × 105 Pa on average. What is the downward force of the air on a desktop with surface area 1.01 m2?

A rigid cube (each side is  0.60 m ) is filled with water and frozen solid. When water freezes its volume expands about  9.0%. How much pressure  Δ?  is exerted on the sides of the cube? Δ?=       N/m2

An otter is swimming in the deep area of his tank at the zoo. The surface area of the otter's back is A = 0.45 m², and you may assume that his back is essentially flat. The gauge pressure of the water at the depth of the otter is P = 10500 Pa. Po- F= α 8 g k Po Enter an expression for the magnitude of the force F on the back of the otter in terms of the gauge pressure P and the atmospheric pressure ß A h m S π d j P t Solve for the magnitude of the force F, in newtons. The direction of the force F is always (||7|8 | 9 1^^ 4 5 6 1 2 3 0 END NO BACKSPACE DEL CLEAR * y HOME X Ⓒtheexpertta.com to the surface the water is in contact with (in this case, the back of the otter).

An automobile weighing 1.19 x 104 N has weight equally distributed over its wheels. The weight of the car causes each tire to be slightly flattened on the bottom so that there is a surface area in contact with the road. The gauge pressure of the air in the tire is 1.90 x 105 Pa (27.55 lb/in2). Find the area of contact, assuming that the only forces on the section of tire in contact with the road are the air pressure and the normal force exerted by the surface of the road.

Given: A woman of m = 51 kg stands on the ice. The contact area between her skate and the ice is A = 0.0061 m2 Express the force that the person exerts on the ice, F, in terms of m and g. You do not need to include the force of the column of air above her.  Calculate the numerical value of F in N.  Express the pressure on the ice from the person P in terms of F and A.  Calculate the numerical value of P in Pa

A 46kg woman wearing shoes with high heels has her weight resting only on an area of 5.5 x 10-³ m² per shoe. a) How much pressure acts on the woman's feet? (both feet!) ✓ ✓ ✓ b) If the woman stood flat footed without high heeled shoes, what affect would it have on the pressure she feels on her feet? Circle one of the following: ✓ a. Increase Pressure b. Decrease Pressure c. No Change in Pressure

Consider a disc of mass 0.44kg, with radius 0.5 m on a slope with angle 45 degrees to the horizontal. It has a good grip on the slope and does not slip. The disc is constructed so that its mass per unit area, ρ(r) = r1/2 kg m−2, with r being the radial distance in metres from the axis of the disc. What is the acceleration of the disc down the slope?

Would a “combination method” be possible, if you first divided the vectors into components and then added the components graphically? Would that give you the right answer?

(a) Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 26.2 m. Assume the density of the water is 1.00 x 103 kg/m3 and the air above is at a pressure of 101.3 kPa. Pa (b) What force is exerted by the water on the window of an underwater vehicle at this depth if the window is circular and has a diameter of 31.0 cm? N