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a) You are travelling in a rocket in a totally vacant universe. The rocket is travelling at 100 m.s-1 and accelerates at 10g for 3 minutes. How fast are you travelling at the completion of this time? You are to argue this in a philosophical vein in no more than 150 words. Your words are to be used for a "sound grabs" for a current affairs programme introducing the general public to the special Theory of relativity.
b) The Special Theory of Relativity predicts that a space traveller, travelling at velocities close to the speed of light will experience time passing more slowly than his earth-bound partner. Your task is to draw a space-time diagram depicting the following situation. A twin is sent on a space flight at a velocity of 0.9c for a period of a year while his sibling remains on earth. The date of the launch is 31/12/08 at midnight and his return is exactly one year later. At midnight on June 30th he radios his brother for a mutual birthday chat tells him that he is returning to Earth instantly. Show clearly on your diagram the path of the rocket, the path of the earth and the path or the radio conversation (radio waves are electromagnetic radiation travelling at the speed of light).
An alternating voltage v=250sin800t volts is applied across a series circuit having a 30 resistor and 50µF capacitor. Calculate (a) the circuit impedance, (b) the current ?
The dimentional formula of frequency T -1
Q. Point out the direction of the current if any induced to flow in the coil by the changing magnetic field. Answer: 1. Given: declining number of magnetic field line
A silicon material is subjected to a magnetic field of strength 1000A/m. If the magnetic susceptibility of silicon is -0.3x10-5, calculate its magnetization and magnetic flux densi
Graphical solutions of Resolution: This topic looks at deriving graphical solutions to problems involving the Addition of Vector Quantities. Firstly, the quantities m
Depending on the material of the resistance element, resistors are classified into linear resistors and non linear resistors. Majority of the resistors used in electronic circuits
Explain the types of polymorphism In terms of thermodynamics, there are two kinds of polymorphism. For a monotropic system, a plot of the free energy of the various polymorphs
Show that the spectrum of thermal radiation for T ¼ 300K peaks at approximately 10 microns.
formulas about force in detail
What are the properties of ultrasonic waves? Properties of Ultrasonic Waves are as follows: a. Ultrasonic waves are acquiring frequencies higher than20 KHz and therefore th
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