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Pick a Bus "Type" - GEO
Orbits and Trajectories
A satellite is built based on the payload(s) type that you are going to fly. Assuming your communication satellite will use high power TWTA transponders feeding a large, high gain antenna pointed at the large antennas on the ground, discuss the following:
1. The merits of a dual-spin design with body-fixed solar arrays vs. a 3-axis stabilized spacecraft bus with deployed arrays.
2. The effect on the thermal control system of the high power TWTA dissipating up to 10kW of heat.
3. The pointing requirements on the ADCS to maintain antenna pointing.
4. The requirements on the propulsion system for stationkeeping.
Assume that the build-up of fatty tissue on the wall of an artery decreased the radius by 10 percent. Determine by how much would the pressure provided by the heart have
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The interatomic spacing in a crystal of table salt is 0.280 nm. This crystal is being studied in a neutron diffraction experiment, similar to the one that produced the photograph in the figure. How fast should a neutron (mass =1.67*10-27 kg) be movin..
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question1a ferryboat transports tourists among three islands. it sails from the first island to the second island 5.98
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Our Milky Way galaxy is 100000 ly in diameter. A spaceship crossing the galaxy measures the galaxy's diameter to be a mere 1.0 ly. What is the speed of the spaceship relative to the galaxy
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