#
Question :
51. Think of Bernoulli's equation as it pertains to an : 2102177

51. Think of Bernoulli's equation as it pertains to an ideal fluid flowing through a horizontal pipe. Imagine that you take measurements along the pipe in the direction of fluid flow. What happens to the sum of the pressure and energy per unit volume?

A. It increases as the pipe diameter increases.

B. It decreases as the pipe diameter increases.

C. It remains constant as the pipe diameter increases.

D. No choices above are valid.

52. An ideal fluid, of density 0.85 ´ 10^{3} kg/m^{3}, flows at 0.25 kg/s through a pipe of radius 0.010 m. What is the fluid speed?

A. 0.85 m/s

B. 1.3 m/s

C. 3.0 m/s

D. 0.94 m/s

53. An ideal fluid, of density 0.90 ´ 10^{3} kg/m^{3}, flows at 6.0 m/s through a level pipe with radius of 0.50 cm. The pressure in the fluid is 1.3 ´ 10^{5} N/m^{2}. This pipe connects to a second level pipe, with radius of 1.5 cm. Find the speed of flow in the second pipe.

A. 54 m/s

B. 18 m/s

C. 0.67 m/s

D. 0.33 m/s

54. The flow rate of blood through the average human aorta, of radius 1.0 cm, is about 90 cm^{3}/s. What is the speed of the blood flow through the aorta?

A. 14 cm/s

B. 32 cm/s

C. 37 cm/s

D. 29 cm/s

55. Water (density = 1 ´ 10^{3} kg/m^{3}) flows at 15 m/s through a pipe with radius 0.040 m. The pipe goes up to the second floor of the building, 3.0 m higher, and the pressure remains unchanged. What is the speed of the water flow in the pipe on the second floor?

A. 13 m/s

B. 14 m/s

C. 15 m/s

D. 16 m/s