FIGURE 15-10
-Water flows in the horizontal pipe shown in Figure 15-10. At A the area is 25.0 cm² and the speed of the water is 2.80 m/s. At B the area is 16.0 cm². The fluid in the manometer is mercury, which has a density of 13,600 kg/m³. What is the manometer reading h?

Question

FIGURE 15-10 FIGURE 15-10 -Water flows in the horizontal pipe shown in Figure 15-10. At A the area is 25.0 cm2 and the speed of the water is 2.80 m/s. At B the area is 16.0 cm2. The fluid in the manometer is mercury, which has a density of 13,600 kg/m3. What is the manometer reading h? A) 0.546 cm B) 1.31 cm C) 2.81 cm D) 4.24 cm E) 3.36 cm

FIGURE 15-10 -Water flows in the horizontal pipe shown in Figure 15-10. At A the area is 25.0 cm<sup>2</sup> and the speed of the water is 2.80 m/s. At B the area is 16.0 cm<sup>2</sup>. The fluid in the manometer is mercury, which has a density of 13,600 kg/m<sup>3</sup>. What is the manometer reading h? A) 0.546 cm B) 1.31 cm C) 2.81 cm D) 4.24 cm E) 3.36 cm

-Water flows in the horizontal pipe shown in Figure 15-10. At A the area is 25.0 cm² and the speed of the water is 2.80 m/s. At B the area is 16.0 cm². The fluid in the manometer is mercury, which has a density of 13,600 kg/m³. What is the manometer reading h?

Quizplus · Accepted Answer

Using the principle of continuity and Bernoulli's equation, we can find the speed at B and then the pressure difference. The manometer reading h is calculated using the pressure difference and the density of mercury.

FIGURE 15-10 -Water Flows in the Horizontal Pipe Shown in Figure 15-10