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One scientist wants to put an 100kg experimental package in orbit around the Earth. The cost of deployment depends on the amount of more extra energy it takes to get it into the required position i.e. how much more energy is used than just sending the rocket up there.
a) Verify the amount of work that must be completed to get the package to 1 000km above the Earth’s surface.
b) Verify the amount of extra work required to put the package into a circular orbit at this height.
Work: In its technical sense, work is the product of force and distance, and work is done only when a force causes movement. We can see this by the formula: Work = Force x
Five volts are applied across the plates of a parallel plate capacitor. The distance of separation of the plates is .02 meters. What is the magnitude of the electric field i
Figure shows the frequency spectrum of a signal at 1184kHz displayed by a high-speed virtual DSO. Determine (a) The harmonic relationship among the signals marked 'o' and 'x',
Copper constantan is used for measuring temperature up to (A) 1400 o C (B) 800 o C. (C) 1100 o C. (D) 400 o C. Ans: Copper constantan is used for meas
An aereplane has velocity 500m/s with respect to air. Wind blows with velocity 20m/s along north. Then in what direction pilot should be heading so as to go along North-east direct
Energy gap: 1.4ev at room temperature Its charactistics are very closely related to those of germanium. This is under stable, since Gallium is the third column neighbour and a
what is meant by physics? and also explain the branches of physics.
Electrical power: Electrical power (symbol P) is the rate at which work is done or the rate of conversion of energy by an electrical system. The SI unit of power is the
The central part (photosphere) of the sun is very hot and all possible wavelengths of the visible light. Though, the outer part (chromospheres) having of vapours of dissimilar com
A silicon iron ring is wound with 800 turns, the ring having a mean diameter of 120mm and a cross-sectional area of 400mm 2 . If when carrying a current of 0.5 A the relative p
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