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A 2000kg ship initially at rest in an inertial system is accelerated along a straight line for (3.16E7 seconds) by means of a photon rocket of 300MW power. If this is accomplised using a series of He-Ne lasers with wavelength=633 nm,
b) what is the speed of the spaceship after one year?c) what distance does it traveld) what fraction of energy released is in the kinetic energy of the spaceshipe) what is the wavelength of light observed in the initial inertial reference frame after 1 year? Doppler effect.
how did computers impact the field of engineers and technologiststechnicians? what future implications do you see
a pressurized tank is nominally at 205 degree c. the density determination must be within 0.5 to be useful. if the
a piston-cylinder with a volume of 0.5 m3 holds 1 kg of nitrogen at a temperature of 261 k. heat transfer to the
a pure jet engine propels an aircraft at 250 ms through air at 45 kpa and -13 degc. the inlet diameter of this engine
a ball is released from the bottom of an elevator which is traveling upward with a velocity of 6fts. if the ball
an airplane flies horizontally at 55.0 ms. its propellernbspdelivers 1500 n of thrust forward force to overcome
the field-circuit resistance and armature-circuit resistance of a 10-hp 115-v motor are 90 ohms and 0.08 ohms
an adiabatic compressor is operating at steady state. the compressor takes in oxygen flowing at 10 m3s at a temperature
air at 5 bar and 177oc state 1 is expanded through a turbine to 1 bar and 27oc state2. the mass flow rate of air
Write a paper on Boyle's law and describe Compression and Combustion stroke . Also explain Charles's law and illustrate SI engine and CI engine.
a tank of volume 12m3 is initially filled with air at 22deg and 100 kpa a vacuum pump slowly removes air from the tank
a nuclear power plant has an electrical power output of 1800 mw and operates with an efficiency of 30. if excess
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