You are designing the sound suppression system for the space shuttle at liftoff.

Question

You are designing the sound suppression system for the space shuttle at liftoff. This is accomplished by dumping water below the main engines of the space shuttle. This can be seen in the video at 01:20 by clicking here. The sound suppression system consists of many outlets that are fed by a single, large tank of water as shown in Fig. 1. The water exiting the large tank enters a pipe with a cross sectional area, A_1, of 12 m^2 with a speed. V_1, of 8 m/s. The sound suppression system consists of five identical outlets. Each outlet has a cross sectional area. A_2. of 0.85 m^2. What is the velocity of the water. V_2, at each outlet?

Explanation / Answer

using the equation of contunity

A1V1= 5A2v2

12(8) = 5 (0.85)v2

V2= 22.588 m/s apprx

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