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What is the mass of a two stage launch vehicle capable of putting a 100kg satellite into orbit around Mars, beginning in a parking orbit altitude at Earth of 200 km. Solve this problem for the following fuels, assuming the departure and arrival velocity changes are made with the same engine:
(1) Cold Gas
(2) Hydrazine Monopropellant
(3) Bipropellant of your choice
(4) Ion Propulsion
Excitation of Modes in Fiber A multimode fiber is used to couple light into a single mode fiber. Both fibers have the same total diameter. Explain the coupling. Use
Ratio of masses of proton and electron is: (1) Infinite (2) 1.8x10 3 (3) 1.8 (4) None of these Ans: (2) 1.8x10 3
Three equal weights A, B, C of mass 2 kg each are hanging on a string passing over a fixed frictionless pulley as shown. Tension in the string connecting weights B and C is approxi
nature of inductors
Printing Paper Industry: Synchronous motors are used in grinders. DC drives are used for pumping pulp and refining it.
kelvin; K (after Lord Kelvin, 1824-1907): The basic SI unit of thermodynamic temperature explained as 1/273.16 of the thermodynamic temperature of the triple point of water.
A block of metal which weighs 60 newtons in air and 40 newtons under water has a density, in kilograms per meter cubed, of: a) 1000 b) 3000 c) 5000 d) 7000
A non-uniform rod AB has a mass M and length 2l.The mass per unit lengthof the rod is mx at a point of the rod distant x from A. find the moment of inertia of this rod about an axi
Truck has a 100 kW engine power and 40 % efficiency . As oil burn in an hour if q = 4.4 to force multiplication 10 to 7 ?
UNIFORM VELOCITY: If a body covers equal displacements in equivalent intervals of time, though the smallest intervals may be, then the velocity of the body is said to be unifor
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