) A rocket fuel where an oxidizer and a binder are used to create a heterogeneou
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Question
) A rocket fuel where an oxidizer and a binder are used to create a heterogeneous mixture is called what? Give one example of such a fuel.
b) What is the minimum required information to find the maximum thrust co-efficient: i) the nozzle expansion ratio and the ratio of exit pressure to chamber pressure; ii) the ratio of exit pressure to chamber pressure and the ratio of the local atmospheric pressure to the chamber pressure; iii) the Mach number at the nozzle exit; iv) none of the above are sufficient to find the maximum thrust co-efficient.
c) For an small satellite in a circular orbit about the Earth, if its mass is reduced by half what happens to the resulting orbit: i) the period increases; ii) it becomes an elliptical orbit; iii) the speed of the satellite increases; iv) none of the above?
d) The solution of the equilibrium combustion conditions of potassium nitrate (KNO3) with hydroxl (OH) terminated polybutadiene (C4H6) using the Gibbs minimization technique will require the simultaneous solution of: i) 5; ii) 6; iii) 7; or iv) 8 equations?
Explanation / Answer
A)composite propellant
Example=ammonium perchloratey
B) i
C) iv
No change will happen,as gravitational force will become half as well
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