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Rays
Rays are cartilaginous fishes related to sharks with flat, disk-like bodies.
1,174 Questions
What are water bugs that look like little stingrays?
The water bugs that resemble little stingrays are known as water boatmen. They have a flat, oval-shaped body with long, paddle-like hind legs that they use for swimming. Water boatmen are aquatic insects found in freshwater habitats and are known for their unique appearance.
Why are gamma rays and X-rays harmful to students?
Gamma rays and X-rays are harmful to students because they are forms of ionizing radiation that can penetrate the body, damaging cells and DNA. This can increase the risk of cancer and other health problems, depending on the level of exposure. It is important for students to limit their exposure to these types of radiation to protect their health.
In high-energy physics what happens when two gamma ray photons meet?
When two gamma ray photons meet, they can undergo a process called pair production, where they can create an electron-positron pair. This process demonstrates that energy can be converted into matter.
Angelfish which haa a diet of algae, worms, shellfish, shrimp, and sponges. the other is Butterflyfish which feeds on soft coral,plankton, and small crustaceans.
I just had the same question after watching Earthfight series 1 episode 1. At approx 09:20 as pelicans follow a pod of dolphins, in the mid-upper right side of the screen you can clearly see a diamond shape creature leap from the sea and back in. I have watched over and over and it looks like a stingray.You can see the white belly as it spins around and u can see the thing tail too. Amazing isn't it? I had no idea they did that.
When did Paul Villard discover gamma rays?
Paul Villard discovered gamma rays in 1900 while studying radiation from radium. He observed a new type of penetrating radiation that was more powerful than alpha and beta rays, and he named it "gamma rays" after the third letter of the Greek alphabet.
Infrared rays have a shorter wavelength than ultraviolet rays?
This statement is incorrect. Infrared rays have a longer wavelength than ultraviolet rays. Infrared rays have wavelengths longer than visible light, while ultraviolet rays have wavelengths shorter than visible light.
The angle when it leaves is the same as the angle when it hits
Which two layers of the atmosphere heat up because they absorb high energy rays from the sun?
The stratosphere and the thermosphere are the two layers of the atmosphere that heat up because they absorb high-energy rays from the sun. The ozone layer in the stratosphere absorbs UV radiation, while the thermosphere absorbs extreme ultraviolet and X-ray radiation.
Electromagnetic radiation with wavelengths between visible light and X-rays is called ultraviolet radiation. It is known to have shorter wavelengths and higher energy than visible light, and is commonly associated with effects like sunburn and skin damage from excessive exposure.
What gases absorb x-rays and gamma rays in the thermosphere?
In the thermosphere, x-rays and gamma rays are mostly absorbed by atomic oxygen and atomic nitrogen. These high-energy photons ionize these gases, creating free electrons which contribute to the electrical conductivity of the thermosphere.
What is the frequency of gamma rays on the electromagnetic spectrum?
Gamma rays have the highest frequency on the electromagnetic spectrum, ranging from about 10 exahertz to over 10 zettahertz. They have the shortest wavelengths and carry the most energy of any electromagnetic radiation.
A) gamma rays are the most energetic type of electromagnetic wave.
Why do stingrays sting people?
The Stingray isn't an aggressive animal, and they don't use the sting to hunt. It usually stings a person when stepped on, or brushed up against and startled. The sting is a defensive reflex done to protect themselves. That is why most people are stung in the foot or lower leg. Fore more details, please see the sites listed below.
Sting rays sting if they feel threatened, this is in there nature because they are eaten by hammerhead sharks (sting rays main predator) in other words if you put your hand over a sting ray and touch it, it will feel threatened and think you are a predator, which will likely get you a sting.
How do gamma rays relate to the PET scanner?
A PET scanner is a positron emission tomography imaging system. It takes advantage of the fact that some radioisotopes undergo radioactive decay by the emission of a positron. This form of decay, by the way, is beta decay, or beta plus decay, to be more specific. The positron is a form of anti-matter, and it is actually an anti-matter electron.
When a positron is emitted from an atomic nucleus, it travels a short distance (slowing down all the while), and then "combines" with an electron in what is called mutual annihilation. When a positron and electron capture each other, their entire mass is converted into electromagnetic energy. This energy appears in the form of two high energy gamma rays, and they leave the event in opposite directions (to be picked up by a pair of detectors). That is the connection of gamma rays to the PET scanner.
There is a bit more to the machine, as the pair of detectors is rotated about what is to be imaged. Further, whatever is to be imaged is moved through the "ring" about which the detectors spin. The connection between the machine and the gamma ray has, however, been established. The PET scanner detects the gamma rays emitted from the mutual annihilation of positrons and electrons.
How many mph can a stingray go a real stingray?
A stingray can swim at speeds of up to 25 miles per hour in short bursts when escaping from predators or hunting for prey.
Do gamma rays have more energy than microwaves?
Yes, gamma rays have much more energy than microwaves. Gamma rays are a form of electromagnetic radiation with the highest energy and shortest wavelength in the electromagnetic spectrum, while microwaves have much lower energy and longer wavelengths.
Why is the beam of light called a cathode ray?
The beam of light is known as a cathode ray because historically it was produced in vacuum tubes by directing a stream of electrons from a negatively charged electrode (cathode) towards a positively charged electrode (anode), leading to the term "cathode ray." It was named so in reference to the electrode from which the electrons originated.
What is the average weight of a stingray?
The average weight of a stingray can vary depending on the species. However, on average, stingrays typically weigh between 100 to 200 pounds. Some species, like the manta ray, can weigh as much as 3,000 pounds.
What is incident ray of light?
An incident ray of light is a ray of light that strikes a surface or boundary between two different materials. It represents the direction in which the light is traveling before it encounters the surface.
Do x-rays have a higher or lower energy than gamma rays?
Gamma rays have higher energy than X-rays. Gamma rays are a type of electromagnetic radiation with the highest energy in the electromagnetic spectrum, while X-rays have lower energy and fall between ultraviolet and gamma rays on the spectrum.
