2. A solid propellant motor has the following properties: a port circum- ference of 0.3 m,...

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2. A solid propellant motor has the following properties: a port circum- ference of 0.3 m, a burn rate of 1.2 cm/s, a propellant density of 1875 kg/m, an initial combustion chamber pressure of 12 MPa, a gas temperature of 2600 K, 1.2, molecular weight of 20 kg/kmol, and a length of 5 m. Plot the change in pressure and in Mach number in the combustion chamber as function of distance in the combustion chamber. 2. A solid propellant motor has the following properties: a port circum- ference of 0.3 m, a burn rate of 1.2 cm/s, a propellant density of 1875 kg/m, an initial combustion chamber pressure of 12 MPa, a gas temperature of 2600 K, 1.2, molecular weight of 20 kg/kmol, and a length of 5 m. Plot the change in pressure and in Mach number in the combustion chamber as function of distance in the combustion chamber.

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