The payload (the important stuff) in a multistage rocket is carried in the last stage.
The earlier stages are there only for the purpose of boosting the last stage on its
way. When each earlier stage is out of fuel, it separates and falls back to Earth.
A rocket that has several stages,each smaller than the last.
they have stages because when each stage burns up all its fuel, the stage is ejected thus making the rocket lighter so it can travel further and/or higher.
No. The 'rocket' parts of spacecraft are the propulsion stages which are used to get the craft out of the earth's gravity and onto the trajectory which will bring it to its destination, or put it into its orbit. The rocket for most spacecraft is a three-stage device - and each stage is jettisoned after it has completed its task. These stages fall back to earth or are burned up in the atmosphere. When the American astronauts landed on the moon they were travelling in a Lunar Module / Lunar Landing Module /Lunar Excursion Module. This was only a tiny part of the Apollo rockets which were launched from Cape Canaveral.
Each shuttle used 2 solid-fuel rocket boosters, which were designed to be recovered and re-used.
It is not the action but the reaction force that makes a rocket lift up. The action force is the force released when the rocket fuel burns. This action force acts on the surface/ground and according to Newton's Third Law [For each and every action, there is an equal and opposite reaction], a reaction force acts towards the rocket hence giving it a lift.
a multistage rocket is a rocket. a rocket could be a multistage rocket. all multi-stage rockets are rockets, but not all rockets are multi-stage. For example the space misstions. They are all multi staged, but each stage is a rocket on its own.
a disadvantige is that a rocket gets disposed of after each flight
If things work as planned, the first stage uses up its fuel, and falls away, while the engines of the second stage ignite and push the rocket into a higher trajectory. This point in the launch sequence is called (predictably enough!) "staging", and it is at this point that things generally go terribly wrong if they are going to. You rarely hear of a rocket in which the second stage works properly and then the THIRD stage fails. When the fuel of the second stage is exhausted, then it, too, falls away while the third stage pushes the rocket into its final orbit, or off into the solar system. This "stages falling away" part is why the USA launches its rockets from Cape Canaveral in Florida; the discarded stages fall harmlessly into the Atlantic Ocean.
A rocket that has several stages,each smaller than the last.
the combinitoin of any random samples is called multistage samplinag. it is the expensive form of cluster samling. when each elements in cluster are expensive then we use multistage sampling.
A rocket that falls to pieces during launch is known as a multistage rocket. These rockets use two or more stages, each with their own engines and propellants. During launch, the stages are jettisoned to reduce mass and improve thrust for the remaining stages.
Water gets converted into different state. It is done at each stage.
1st Stage, 2nd Stage, 3rd Stage, Command & Service Modules, and Launch Escape System
Look at the wiring diagram for each.
You should think of a multistage pump as a series of single stage pumps all mounted on one shaft with a single large case that holds all of them. As with all centrifugal pumps, the capacity of any single stage varies with the amount of head (discharge pressure) that stage develops. More head, less flow. Less head, more flow. In any case the single stage has a limited amount of head development at any given flow rate. To produce more head, multiple stages are operated in series so that each stage's head is added to that of the previous stage. Multistage pumps can be either horizontal or vertical in configuration.
they have stages because when each stage burns up all its fuel, the stage is ejected thus making the rocket lighter so it can travel further and/or higher.
Multistage sampling is a form of cluster sampling where instead of using the entire cluster, random samples from each cluster are used. This is typically used when doing opinion polls or surveys.