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HW2 - 3/s 2 PROBLEM 3(Sec 7.3 The specific impulse of a...

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----------------------- MAE 180B - HOMEWORK # 2 ----------------------- PROBLEM 1 (Sec. 8.1): A satellite at 300-km altitude is continuously exposed to minimum F10.7 solar radio flux for 400 days. Calculate the % erosion in a 2-millimiter thick Kapton insulator due to the presence of atomic oxygen (see Section 8.1.3). PROBLEM 2 (Sec. 6.3): Calculate the total ΔV and the time required for a Hohmann transfer from a circular Mercury orbit of radius 5,000 km to a circular Mercury orbit of radius 12,000 km. The gravitational constant for Mercury is 22,032 km
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Unformatted text preview: 3 /s 2 . PROBLEM 3 (Sec. 7.3): The specific impulse of a spacecraft is 350 seconds. The ΔV required for transfer from the parking orbit to the mission orbit is 1.2 km/s. The initial mass of the spacecraft is 980 kg. Calculate the propellant mass required for this phase of the mission. NOTE: The relationship between the three masses shown above Equation 7.14 in the book must be corrected to: m f = m- m p where m f is the spacecraft final mass, m is the spacecraft initial mass, and m p is the propellant mass....
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