Rockets or launch vehicles, Science

Assignment Help:

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  

 

2479_Rockets or Launch Vehicles.png

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.  

 


Related Discussions:- Rockets or launch vehicles

Leopard cats, what is the commensalism of a leopard cat

what is the commensalism of a leopard cat

Define the visual area of the cerebrum, Define the visual area of the Cereb...

Define the visual area of the Cerebrum The visual area lies behind the parieto-occipital sulcus and includes greater part of occipital lobes. Optic nerve passes from eyes to th

Explain cephalic phase or neural phase, Explain Cephalic Phase or Neural Ph...

Explain Cephalic Phase or Neural Phase 45% of the total gastric secretion is discharged in this phase. The flow of juice occurs before food reaches the stomach. Sight of food,

Treatment of the spillage site after removal, Treatment of the spillage sit...

Treatment of the spillage site after removal of the bulk of the waste In order to remove the final traces of the spillage, any one of the following methods may be used dependin

Help, A rock weighs 33.6 N on Planet X and 49 N on Earth. What is g on Plan...

A rock weighs 33.6 N on Planet X and 49 N on Earth. What is g on Planet X?

#antabuse, The active ingredient in Antabuse, a drug used for the treatment...

The active ingredient in Antabuse, a drug used for the treatment of chronic alcoholism, is tetraethylthiuram disulfide, C10H20N2S4 (fw = 296.54). The sulfur in a 0.4329 g. sample o

In what conditions an element is called an essential element, Under what co...

Under what conditions an element is called an essential element?   An element is called as an essential element, if:   a.  The plant can not complete its life cycle without it

Explain the sensory decussation - feature of medulla, Explain the Sensory D...

Explain the Sensory Decussation - Feature of Medulla Some of the sensory nerves ascending to the cerebrum from spinal cord cross from one side to the other in the medulla. Card

Chemical evolution of spontaneous generation, Chemical Evolution The qu...

Chemical Evolution The question of  how life came into being in  the first place still remained unanswered. To  find an answer to this question means looking back billions of y

Explain sneezing reflex actions - respiratory process, Explain Sneezing Ref...

Explain Sneezing Reflex Actions - Respiratory Process This reflex is an involuntary, sudden, violent and audible expulsion of air through the mouth and nose. Usually irritation

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd