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To place a communications satellite into a geosynchronous orbit at an altitude of 22,240 mi above the surface of the earth, the satellite first is released from a space shuttle , which is in a circular orbit at an altitude of 185 mi, and then is propelled by an upper-stage booster to its final altitude. As the satellite passes through A, the booster's motor is fired to insert the satellite into an elliptic transfer orbit. The booster is again fired at B to insert the satellite into a geosynchronous orbit. Knowing that the second firing increases the speed of the satellite by 4810ft/s, determine (a.) the speed of the satellite as it approaches B on the elliptic transfer orbit, (b.) the increase in speed resulting from the first firing at A.
A wheel barrow is used to lift a 200 lb load. The length from the wheel axle to the center of the load is 2 ft. The length from the wheel and axle to the effort is 5 ft. 5. What is the ideal mechanical advantage of the system?
2000 kgh of milk is sterilized in a steam infusion sterilizer steam and milk directly contact. the milk is heated to
Draw the shear force diagram for the beam and determine the position and magnitude of the maximum bending moment.
Weld analysis, Two steel plates are joined with a butt weld using a weld throat h of 3/8 in. and the length of weld 1 of 4in.
Determine the velocity of shearing along the shear plane and the velocity of sliding at the tool-chip interface and find the work done per minute in shearing the metal and against the friction.
a construction crew lifts approximantely 560lb of material serveral times during the day from a flatbed truck to a 32
B) Determine the minimum amount of work [kJ ] required to reach this end state. C) If more than the minimum work is actually used, where does this extra energy go? That is what becomes of the extra energy?
A 10-kg mass slides down a ramp inclined at 30o from the horizontal a total vertical distance of 3 m. Determine the velocity of the mass when it reaches the bottom, neglecting friction and air resistance.
How the tensile stress and compressive stress result in the moment about neutral axis when the beam fails
The bending moment M at position x m from the end of a simply supported beam of lenght L m carrying a uniformy distributed load of w Kn m-1 is given by
in each cycle of its operation a refrigerator removes 17j of heat from the inside of the refrigerator and releases 40j
in a tempering process glass plate which is initially at a uniform temperature ti is cooled by suddenly reducing the
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