What is the pressure 30.0 m below the surface of a lake? The pressure at the surface is 10.4 m H2O and the density of water is 1000 kg/m^3. Use the conversion factor 101 325 kPa = 10.33 m H2O.

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

Mercury is poured into a U-tube as shown in Figure a. The left arm of the tube has cross-sectional area A, of 9.8 cm², and the right arm has a cross-sectional area A, of 5.50 cm². Two hundred gra 8 ст of water are then poured into the right arm as shown in Figure b. Water A1 Ag A1 Mercury Densities: Mercury 13.6 g/cm³, Water 1.0 g/cm³ (a) Determine the length of the water column in the right arm of the U-tube. cm (b) What distance h does the mercury rise in the left arm? cm. (c) In figure b, at the level of the dashed line, which side of the u-tube has larger pressure? O Mecure side Water side Same

An airplane passenger has 100 cm3 of air in his stomach just before the plane takes off from a sea-level airport. What volume will the air have at cruising altitude if cabin pressure drops to 7.50 X 104 N/m2?

A person is diving in a lake in the depth of h = 10.5 m. The density of the water is ρ = 1.0 x103 kg/m3. The pressure of the atmosphere is P0 = 1.0 x 105 Pa. The surface area of the top of the person's head is A = 0.0335 m2.  a. Express the absolute pressure at the depth of h, P, in terms of P0, ρ, and h.  b. Calculate the numerical value of P in Pa.  c. Express the magnitude of the force exerted by water on the top of the person's head F at the depth h in terms of P and A.  d.  Calculate the numerical value of F in N.

25,708 E 8. Water at a pressure of 4.70 atm at street level flows into an office building at a speed of 0.80 m/s through a pipe 5.00 cm in diameter. The pipes taper down to 2.00 cm in diameter by the top floor, 22.0 m above. Calculate the water pressure in such a pipe on the top floor. Pa 27 R DI C F V 96 5 T G tv 6. B MacBook Air & 7 D N 34 8 M ( 9 K A O O W F10 P P zoom by mi 04 M vauies or the puffer s Am delete