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What devices that move atomic nuclei at extremely high speeds is?
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What term describe an apparent change in frequency of sound waves of rapidly moving?
Doppler Shift. It occurs in electromagnetic radiation too, though is really only significant at extremely high speeds such as the recession-rate of galaxies.
When a radioactive isotope emits a its atomic number increases?
a beta particle. the nucleus is made of protons (+) and neutrons. but neutrons can transform into an electron and a proton. when that happens in the nucleus, the proton stays in the nucleus while the electron shoots out at incredibly high speeds. that high speed electron is called a beta particle. the proton that stays is added to the other protons to increase the atomic number
Do the molecules in a liquid all have about the same speed or is there a wide varity of speeds?
there is a wide variety of speeds
What are the speeds of a long wave light compared to a short wave light?
Their speeds are exactly identical.
How do you find the average velocity if there are two different speeds?
We sum the two different speeds and devided by two
What are devices that move atomic nuclei at high speeds?
The device is called a Particle Accelerator.
How is a particle accelerator used to synthesize new elements?
they move atomic nuclei faster and faster until they have reached very high speeds
Hydrogen nuclei collide at high speeds to form helium nuclei this reaction is called?
Fusion
What is the name of the reaction when hydrogen nuclei collide at high speeds to form helium nuclei?
It's a nuclear fusion reaction
Where cosmic ray are produced. can you produce it artificially or not?
By definition a cosmic ray is from the cosmos, so the artificial production of one might have to go by some other name. However, it would be possible to create its equivalent in a particle accelerator by accelerating a charged particle to relativistic speeds. Cosmic rays are not electromagnetic radiation as the name might suggest but are high speed atomic nuclei - primarily hydrogen nuclei (protons) helium nuclei (alpha particles) and smaller amounts of heavier nuclei.
What are the devices use by car manufacturers to increase the airflow at high speeds?
Those devices are hood scoops.
What is interstellar matter made of?
The interstellar medium is an extremely sparse (tenuous) mix of gas and dust, some of the gas being ionized, some atomic, and some molecular. By composition the gas is largely hydrogen, with smaller amounts of helium and very small amounts of heavier elements. There are also cosmic rays which are protons and nuclei which have been accelerated to near-relativistic speeds. In cooler, high-density areas, the interstellar medium can become as dense as one ten-billionth that of air.
What is a moderator in a nuclear reactor?
A moderator is a substance that helps slow down the neutrons so that they can collide with other nuclei to perpetuate the fission reaction (instead of just zipping by at high speeds and missing the nuclei completely most of the time).
When traveling towards a planet at extremely high speeds you will see time at what speed?
Faster
What are main components of primary cosmic rays?
Primary cosmic rays generally appear to be fully ionized nuclei of very massive atoms. Secondary cosmic rays are showers of various subatomic particles (e.g. muons) produced in collisions of primary cosmic rays with atomic nuclei of various gasses in earth's upper atmosphere.
Is alpha decay exothermic?
Alpha decay is the type of radioactive disintegration in which some unstable atomic nuclei dissipate excess energy by spontaneously ejecting an alpha particle.Alpha particles have two positive charges and a mass of four atomic mass units; they are identical to helium nuclei. Though they are emitted at speeds about one-tenth that of light, they are not very penetrating and have ranges in air of about 1-4 in. (2.5-10 cm). And, exothermic reaction is the chemical reaction that produced heat as they take place. Since in alpha decay ,energy is released ( provided heat is a form of energy),this type of radioactive disintegration is exothermic.
Are metals synthetic elements?
Scientists make synthetic elements by forcing nuclear particles to crash into one another. ex) plutonium is made by bombarding nuclei of Uranium-238 with neutrons ina nuclear reactor. Additional info. Particle accelerator: move atomic nuclei faster and faster until they have reached very high speeds. If they hit each other with enough energy, the particles sometimes combine into a single nucleus.
