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Problem: A satellite is launched into Earth orbit by a Delta II launch vehicle (LV). The Delta LV's engines do not perform as expected, and at upper-stage burnout the satellite has the following states: altitude is 250 km, inertial velocity is 7.58 km/s, flight-path angle is 0.6 deg. The satellite mass after burn-out and separation is 2,300 kg.
a) Determine the velocity impulse (DV) required to obtain a circular orbit when the satellite reaches its apogee.
b) If the satellite uses its on-board propulsion system for the circularization burn, determine the propellant mass required for the circularization burn (assume the on-board hydrazine engine has an Isp = 280 sec).
Problem: A new heat shield is being tested experimentally by launching a payload that consists of a re-entry capsule with mass m = 200 kg, drag coefficient CD = 1.7, and radius r = 0.65 m. Design an acceptable engine cut-off state (r, V, and g) that satisfies the following mission constraints: 1) the re-entry capsule's maximum deceleration is 12 g, and 2) the flight time from engine cut-off to entry interface (EI) must be greater than 15 min to allow payload separation procedures. In addition, determine the inertial velocity and flight-path angle at EI.
Assumptions of CVP This chapter has given information on how to apply CVP for the business analysis. Most of this analysis is keyed to the model of how profitability is impacte
what is marginal costing and explain concept of marginal costing
a) Company X is expected to maintain a constant 7% growth rate in their dividends, indefinitely. If the company has a dividend yield of 4%, what is the required return on their
an application of marginal costing
Period Costs Some terms are difficult to define. In one school of thought, period costs are the any costs that are not product costs. But, such a description is a stretch, beca
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Balance Sheet 2010 2011 Assets Cash
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Pauline's Pastry Shop decides to remodel its offices this year. As part of the remodeling, Pauline's trades furniture with a cost of $12,000 that had been expensed in the year of p
Process Losses Most manufacturing processes result in several portion of the raw materials utilized not being transformed into a reliable half losses. These losses may take t
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