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The additional volume will provide a greater reaction mass, but with a smaller space remaining for the pressurized air that actually provides the thrust energy. Experiments with the volume of water should provide clues to the optimum amount. NOTE : at no time should the air pressure in the pressure chamber exceed the MAXIMUM SAFE PRESSURE.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoThe force needed to lift a rocket is expressed as F=MA, or Force equals the product of Mass and Acceleration. Since the water being pushed out has more mass than the air would (i.e. is heavier than air), there is more resulting force to lift the bottle. Without the water in the bottle, you would have a quick "pfft" and insignificant lift.
The ratio of water to air is important also. Too much air, you run out of water and and your acceleration stops too quickly to lift the bottle. Too much water, and the bottle doesn't empty and the extra weight of the remaining water results in a disappointing launch.
Wiki User
∙ 16y agoThey work on compressed air. Water is the propellant but the compressed air forces it out under pressure.
Wiki User
∙ 13y agoThe compressed air inside the bottle pushes the water out of the nozzle and it water then gives the thrust to accelerate the rocket.
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Would it be better if rockets were lauched over water or land?
No.
Why do things float better in salted water?
Salt water is more denser than any kind of water, because of its salt content,it increases the bouyancy (the property of a fluid to exert an upward thrust of the body emerged into it) of the water.So, things float more better in salt water.
What are three types of rockets that power modern spacecraft?
The answer, is that there are only two types of rockets which fuel modern spacecraft. they are solid fuel rockets, and liquid fuel rockets
Do objects float better in salt water or fresh water?
Objects float better in salt water because the denser the water the easier the object will float for instance if your at a salt water beach you will float easier in a salt water beach then you will floating in a swimming pool.
Will an orange float with salt or regular water better?
The salted water has a greater density and is more adequate for floating; but for the orange test yourself.
Would it be better if rockets were lauched over water or land?
No.
How do you increase height of water rockets with only water?
Less water more air
What is the difference between water rockets and modern rockets?
Water rockets use water and air modern rockets use thrust and oxygen.
Is rockets better than it used to be?
Rockets and their motors improve all the time.
Do rockets work better in space or in air?
Rockets generally work better in the space as compared on air. This is because there is no air resistance on the space.
Are body tubes good for water rockets?
Yes, the NASA website even has tutorials for how to build water rockets with body tubes.
How many multistage do rockets have?
Multistage rockets have two or more stages. Typically, rockets will have only two to three.
How have rockets improved?
they have a better engine than before
How many stages do multistage rockets have?
Multistage rockets have two or more stages. Typically, rockets will have only two to three.
Can razor dirt rockets go through water?
No they cannot. Why do you think that they're called 'dirt rockets'
Why do water rockets need fins?
Water rockets need fins because the rocket needs to stay in balance....without fins on a water rocket, the water rocket would be going out of control because it is not in balance!
What do rockets need to travel into space?
air and water
