Answered: The following data are given for a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The following data are given for a certain rocket unit: Thrust, 8000 N Propellant weight flow rate, 36 N/sec Speed of rocket, 800 m/s internal efficiency
32%
combustion efficiency 97 %
Determine (a) the effective velocity; (b) total kinetic energy per second (c) calorific value of propellant (d) the propulsive efficiency (e) the overall efficiency (f) the specific impulse (g) the specific propellant consumption

????? =1/3 ?(?^2) h
V cylinder = ?(?^2) h

V frustrum = 1/3 ?ℎ(?^2 +?^2 +? ×?)

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Question 2
The following data are given for a certain rocket unit:
Thrust,
8000 N
Propellant weight flow rate,
internal efficiency
36 N/sec
Speed of rocket,
combustion efficiency
800 m/s
32%
97 %
Determine (a) the effective velocity; (b) total kinetic energy per second (c) calorific value of
propellant (d) the propulsive efficiency (e) the overall efficiency (f) the specific impulse (g)
the specific propellant consumption

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