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Engineering, 08.04.2020 02:35 iidoqeii16ovh8tk

Rocket scientists are testing a new three-stage rocket for delivering small payloads to low-Earth orbit. It has these characteristics

• Ispstage 1 = 300 s

• Ispstage 2 = 350 s

• Ispstage 3 = 400 s

• Payload mass = 1500 kg

• Structure mass stage 1 = 10,000 kg

• Structure mass stages 2 and 3 = 7500 kg each

• Propellant mass stage 1 = 50,000 kg

• Propellant mass stage 2 = 40,000 kg

• Propellant mass stage 3 = 35,000 kg

a) What is the initial mass of the entire vehicle?

b) What is the final mass of stage 1?

c) What is the ΔV of stage 1?

d) What is the initial mass of stage 2?

e) What is the final mass of stage 2?

f) What is the ΔV of stage 2?

g) What is the initial mass of stage 3?

h) What is the final mass of stage 3?

i) What is the ΔV of stage 3?

j) What is the total ΔV of the booster?

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Answers: 1

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