(a) Explanation According to the Bernoulli’s theorem, P 1 + ρ g y 1 + 1 2 ρ v 1 2 = P 2 + ρ g y 2 + 1 2 ρ v 2 P 1 − P 2 = ρ g y 2 + 1 2 ρ v 2 − ρ g y 1 − 1 2 ρ v 1 2 In gases the density is usually low and hence the pressure due to elevation is negligible so, P 1 − P 2 = 1 2 ρ v 2 − 1 2 ρ v 1 2 P 1 − P 2 = 1 2 ρ ( v 2 − v 1 2 ) (b) To determine The thrust force on the rocket due to emitted gases is F = 2 A 0 ( P − P 0 ) .

Physics for Scientists and Engineers with Modern Physics

4th Edition

ISBN: 9780131495081

Author: Douglas C. Giancoli

Publisher: Addison-Wesley

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Density of Solids

The density of a substance refers to how much matter is present in a given amount of space. It is expressed as the ratio of the mass of the substance to its volume.

Question

Chapter 13, Problem 61P

(a)

To determine

The emission speed of the propelling gases of the rocket is v=2(P−P0)ρ.

(b)

To determine

The thrust force on the rocket due to emitted gases is F=2A0(P−P0).

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Chapter 13, Problem 60P

Chapter 13, Problem 62P

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Chapter 13 Solutions

Physics for Scientists and Engineers with Modern Physics

Ch. 13.3 - Prob. 1AE Ch. 13.3 - A dam holds hack a lake that is 85 m deep at the...Ch. 13.7 - On the hydrometer of Example 1311, will the marks...Ch. 13.7 - Which of the following objects, submerged in...Ch. 13.7 - Which of the following objects, submerged in...Ch. 13.9 - As water in a level pipe passes from a narrow...Ch. 13.10 - Return to Chapter-Opening Question 2, page 339,...Ch. 13 - If one material has a higher density than another,...Ch. 13 - Airplane travelers sometimes note that their...Ch. 13 - The three containers in Fig. 1343 are filled with...

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The emission speed of the propelling gases of the rocket is v = 2 ( P − P 0 ) ρ .

Solution Summary: The author proves that the emission speed of propelling gases from the rocket is v=sqrt2(P-P_0)rho

Concept explainers

The emission speed of the propelling gases of the rocket is v=2(P−P0)ρ.

The thrust force on the rocket due to emitted gases is F=2A0(P−P0).

Want to see the full answer?

Chapter 13 Solutions