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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
What is meant by the term 'modulation'? Define with the help of a block diagram, how the process of modulation is carried out in radio broadcasts.
Draw a circuit diagram of a common emitter amplifier by using n-p-n transistor. Show input and output voltages graphically. The current gain for common emitter amplifier is 59.
how to measure least count of the instruments?
Find the value of g by free fall method.
Q. Illustrate what is dissimilar between secondary electron image and back scattered electron image? Answer:- Secondary electron images demonstrate topography of a sample.
1. Calculate the entropy change when 1 kmol of an ideal gas at 300 K and 10 bar expands to a pressure of 1 bar if the temperature stays constant. 2. What is the change in entrop
Q What is Tyndal scattering? Tyndal scattering- When light passes throughout a colloidal solution its path is visible inside the solution. This is for the reason that the
A medium is characterised by relative permittivity ε r =45 and relative permeability μ r =5. Determine the speed of e-m wave in the refractive and medium index of the medium.
The rate of modification of thermo emf with the change in the temperature of the hot junction is known as thermoelectric power.
What do you understand by "Absorption coefficient"? which is a better absorber of sound, glass or fibre glass?
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