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Rockets or Launch Vehicles:
Every flight into space begins with a rocket launching. The rocket can lift a satellite or spaceship carrying human beings and equipment into space. Therefore, it is also called launch vehicle. The rocket has been known to mankind for centuries. Rockets used as firecrackers are a common sight on festive occasions in our country. But the rockets that launch space whicles use highly advanced technology, and, of course, they are far more
When the fuel in the rocket is set tofire, a stream of hot gases is expelled at a high speed from its rear end (Fig). As ireaction to the thrust of the,gases, the rocket moves in the opposite direction. As long as the fuel in the rocket burns, shooting out gases, the rocket continues to accelerate forward, and acquires great speed. No single rocket fired from the earth can attain in one go the high speeneeded to orbit the earth, or to escape its pull. Higher speeds are reached by using big and small rockets, in stages. in the launch vehicle. As the large rocket soars into space and uses up its fuel, lt IS separated from the smaller rocket and drops off. The smaller rocket already going at high speed is then fired to accelerate it to an even higher speed. Three-stage rockets are usually able to achieve speeds suitable for most purposes in space (Fig). The final stage of the launch vehicle carries the payload. Activity Verify the principle of rocket motion by releasing an inflated balloon with its neck open. The different kinds of payloads that rockets carry into space include artificial satellites and space probes to nearby heavenly bodies. The satellites and probes themselves carry communication and research Quipment.
Define Antidiuretic Hormone - Posterior Pituitary Antidiuretic hormone or ADH, also known as vasopressin, is another polypeptide containing 9 amino acids. As the name of the ho
what would i need to do to achieve a 7C in science , KS3??
Useful Instruction : You should go through of LT-1 course before doing this exercise. This exercise is a mix of demonstration and hands on activities. Take the help of your counse
Explain Transverse colon and Descending colon Transverse colon: This is a loop of colon which extends transversely across the abdominal cavity in front of the duodenum and th
The Maximum theoretical limit of channel is governed by Nyquist theorem, which says Bth = 2 x freq in hertz x log2L ( where L = number of level) Thus we have in this case Bth= 2x60
Explain the Malformations or Birth Defects of Genital Organs Other gynaecological morbidities cover congenital malformations or birth defects of the genital organs. These occur
Q. How is harvest maturity identified? Maturity indices can be determined on the basis of : Number of days from setting, Sight-colour, size and shape, Touch-texture, hardness o
How soap helps water in cleaning Prepare two greasy cloths by smearing kitchen fat or vaseline on cloths. Wash one sample in warm water without soap. Wash the other sample in w
does air is conductor
What is the rate of species and how does this relate to finding transitional species? The rate of species stated on the time and specific species and environment at the time, t
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