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What else can I help you with?
How do fins stabilize a rocket?
about one-forth of the height of the size of the rocket.
Is a right triangles 2 lines one straight and one slanted the same size?
no the the slanted line is longer Save
Are shark dorsal fins straight while dolphin dorsal fins are curved?
Shark dorsal fins are typically straight and rigid, while dolphin dorsal fins are curved or falcate. This difference in dorsal fin shape is one of the visual cues you can use to differentiate between sharks and dolphins in the wild.
Why do rocket have fins?
The fins on a rocket are just there to create stability. As long as there are enough to provide a restoring force against a disturbance, it shouldn't matter. But ... Enough means at least three, symetrically placed, with enough area so that when the rocket tips off of its path a little bit the fins provide aerodynamic force to put it straight again. If you only had two, a disturbance in the plane of the fins would not get corrected and the rocket would veer off course. With three, any tipping off of the flight path hits at least one of the fins in a way to correct the misalignment. Four works, too. Any more than that and you're just adding drag, which will shorten the flight. Note well that the key parameter is the area of the fin times the distance it's lift center is behind the mass center of the rocket. That's why something with the fins behind the engine nozzle works so well, because the lift center is behind the entire rocket. Before I knew that rule I built a seriously overpowered rocket with gigantic fins that came all the way up to the nose. Instead of flying with great stability as I expected, it jumped off the launch rod and headed for launch control, then writhed on the ground like a beached whale until the parachute charge went off.
How do rocket parts affect flight?
AnswerThe fins on a rocket are just there to create stability. As long as there are enough to provide a restoring force against a disturbance, it shouldn't matter. But ...Enough means at least three, symetrically placed, with enough area so that when the rocket tips off of its path a little bit the fins provide aerodynamic force to put it straight again. If you only had two, a disturbance in the plane of the fins would not get corrected and the rocket would veer off course. With three, any tipping off of the flight path hits at least one of the fins in a way to correct the misalignment. Four works, too. Any more than that and you're just adding drag, which will shorten the flight.Note well that the key parameter is the area of the fin times the distance it's lift center is behind the mass center of the rocket. That's why something with the fins behind the engine nozzle works so well, because the lift center is behind the entire rocket. Before I knew that rule I built a seriously overpowered rocket with gigantic fins that came all the way up to the nose. Instead of flying with great stability as I expected, it jumped off the launch rod and headed for launch control, then writhed on the ground like a beached whale until the parachute charge went off.
What is the best fin size for a 2 liter bottle rocket?
There does not appear to be a "best" size. It depends on a number of factors, to include the bottle used (brand of drink & manufacturer), type of rocket, distance aiming for. One common element to consider is drag. Larger fins have greater surface and mass which will directly affect the altitude your rocket can reach.
How would you make a good bottle launcher?
# Remove the label from the outside of the bottle. Take a cloth and some paint thinner to remove the sticky portion of the label. This may take a while and a lot of rubbing. # Decide how many fins you would like. Four fins are easier than three, but if done correctly either way works well. The fin shape is also up to you. See the diagram for the easiest fin shape. Next, trace the fin design out on the balsa wood sheet and cut the desired number of fins out from the sheet. Make sure that the grain of the wood is running parallel to the leading or trailing edge of the fin. If this is not done, the fin may rip apart in mid flight. Lightly sand the fins so they become smooth. # Now, it is time to mount the fins onto the rocket. Take a piece of paper and wrap it around the lower portion of the bottle (near the opening end). Mark the circumference of the bottle where the piece of paper overlaps its self. Remove the paper and measure the distance to the mark that was just made. This will tell you the circumference of the bottle. If you are planning 4 fins, divide the circumference by 4. Use this number to divide the piece of paper into four equal sections and mark the sections. If you are planning for 3 fins, use the same process, but this time divide the piece of paper into 3 sections. Wrap the piece of paper around the bottle as before and secure it with a piece of tape. Take a felt marker and transfer the section marks on the paper to the bottle. These marks designate where the fins are to be placed. Make sure everything is perfectly even, or the rocket will not fly well. # Next, take a straight edge (ruler) and draw a line through the mark that was made so you will have a guide-line for fin mounting. Apply a rubber-based cement to the fins, carefully aligning the fins with the straight lines you have just drawn. Press the fins down onto the bottle and use a piece of tape on either side of the fins in order to keep them straight while the glue sets. It is best if only one fin is done at a time and the fin is kept vertical until the glue has set. Make sure all of the fins are perfectly straight. # The final step is to cut the manila folder into a cone so that it will fit over the top of the bottle rocket. This will be the nose cone. Cement the nose cone to the top of the rocket. If you wish, a parachute can be added. The rocket is now finished. Make sure all glues have dried completely and the fins a securely attached to the rocket before it is flown.
How many wings does a bottle rocket need to have?
A bottle rocket typically has one set of wings to provide stability during flight. These wings are usually attached to the airframe and help to keep the rocket flying straight and prevent it from tumbling.
How do you draw an angle that measures between 90 and 180 degrees?
first draw a straight line. then erase half of the line and re-draw the part of the line that you erase and make this line slanted while one of the ends of the line is connnected to your straight line.
How do you complete 46 on Dooors?
For this level, you have to match the giant bolt-things to the pattern on the door. Like this: \ / / \ \ / / \ Top left should be slanted up left down right. (\) 2nd one down on left should be slanted down left up right. (/) 3rd one down on left should be slanted up left down right. (\) last one on left should be slanted down left up right. (/) Top right should be slanted down left up right. (/) 2nd one down on right should be slanted up left down right. (\) 3rd one down on right should be slanted down left up right. (/) last one on right should be slanted up left down right. (\)
How do you complete level 46 on Dooors?
For this level, you have to match the giant bolt-things to the pattern on the door. Like this: \ / / \ \ / / \ Top left should be slanted up left down right. (\) 2nd one down on left should be slanted down left up right. (/) 3rd one down on left should be slanted up left down right. (\) last one on left should be slanted down left up right. (/) Top right should be slanted down left up right. (/) 2nd one down on right should be slanted up left down right. (\) 3rd one down on right should be slanted down left up right. (/) last one on right should be slanted up left down right. (\)
Except for dive fins what type of fins could one buy for scuba diving?
There are a wide range of different fins available for scuba diving. Other than dive fins, these include fins such as snorkel fins, paddle fins and split fins.
