Question

Quiz ch. 13 1) The Titanic was found lying on the bottom of the North Atlantic at a depth of 7.4 km What is the pressure at this depth? (P -1.01* 10 Pa Pe - 1025 kg/m) p. Pat pan a) 1.75*10* Pa b) 7.53x10 Pa 7.44*10' Pa d)1.01 10 Pa 740 3. COK + 10 25 X 18K 740 2) During a complete heart pumping cycle, the pressure in the heart is: a) constant b) at its maximum value ) goes through both a maximum and a minimum d) decreases 3) Knowing that 60% of a block of wood is submerged under sea water, if the volume of the block of wood is 100 cm. What is the magnitude of the buoyant force? a) 100 N c) 60.3 N b) 6.0310 N c) 6.03*10' N 4) A horizontal pipe of a radius R-5 cm leading up to a hose with a cross sectional area 4 - 9x10m'. Water flows inside the pipe with a velocity v -1.6 m/sec. The flow rate Qis: a) 25.1 m's b)1.44*10' m's c) 126 m's d) 1.26*10m's 5) A horizontal pipe of a radius R-5 cm leading up to a hose with a cross sectional area 4 - 9x10m'. Water flows inside the pipe with a velocity v -1.6 m/sec. The velocity of the water comes out from the hose is: a) 1.6 m/s c) 14 m's b) 1.1x10 m's d)2.8 = 10 m/s : 18-785 x = 4 ra" x 4 + = 4 45 5 6) The gauge pressure at the heart of a hypertension patient is Px-13.3 kPa. If his heart is 1.3 m above his feet as shown in fig. Calculate the gauge pressure at his feet. (Assume the velocity of blood is the same anywhere in the circulatory system). a) 1.35*10* kPa b) 1.35*10* kPa 4499h c) 26.8 kPa d) 13.5 kPa

Answer 1

P Po Pah P 101xo1 l0259.8x74103 ophun c 7.44 lo Pa Scanned with CS CamScanner