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What else can I help you with?
How loud is a jet?
A jet at 100 m distance can have a sound pressure level of L = 140 dBSPL.Never forget to tell the distance of the measuring microphone from the sound source, because the closer you are the louder it is.The sound pressure level decreases by 6 dB per doubling of distance from the source to 1/2 (50 %) of the sound pressure initial value.The sound pressure decreases inversely as the distance increases with 1/r from the sound source.
Can radio waves be polarized?
Yes, like all electromagnetic radiation can be polarized. The A. T. & T. Long Lines Microwave tower system doubled its long distance call capacity by using cross polarized microwaves. This system operated from the late 1940s to the early 1990s (when fibre optics superceded it, but many of the towers and horns remain, see the image above showing a transmitting/receiving pair of horns).
Are gamma rays and radio waves the most dangerous waves?
Gama rays and radio waves together with the light for example are all electromagnetic waves. The properties of the waves depends on the frequency. If they have higher frequency, the have also higher energy which could be absorbed by body. This list shows electromagnetic spectrum. The waves are ordered from the lowest frequency to highest, which is the most dangerous. - radio - microwave - infrared - visible - ultraviolet - x-ray - gama rays However, the distance from the source of the radiation is important. That's why are scientists arguing about the harmfulness of mobile phones. On the other hand, well protected and shielded nuclear power plant is absolutely harmless.
How are radio waves and microwaves alike?
Their frequencies are quite different. Microwaves are electromagnetic radiation with frequencies in the range from 300 MHz (0.3 GHz) to 300 GHz. Ultraviolet rays are electromagnetic radiation with wavelengths in the range from 10 nm to 400 nm (frequencies from 2.99x107 to 7.5x105 GHz). Since the frequencies are so different, UV filters may not filter microwaves and vice-versa. Similarly, absorption of the two forms of radiation is quite different. Microwaves can heat a cup of soup up very nicely while you could die of starvation waiting for UV rays to heat it up.
How many decibels can pianos produce?
That depends how close you measure the piano. The closer - the louder! The distance is very important if you measure with a sound pressure level meter. And it depends how hard a pianist can attack the keys.
What two factors of the electromagnetic radiation have an inverse relationship?
The intensity of any electromagnetic radiation is inversely proportional to the square of the distance of the emitter of that radiation.
What is the relationship between the intensity of the radiation given off from a radiation source and distance from the radiation source?
The source doesn't care how far you are from it, or whether you're even there, andthere's no relationship between that and the intensity of the radiation it gives off.However, the intensity of the radiation that you receivefrom it is inversely proportionalto the square of your distance from it ... same math as for gravity.
How much radiation do you get from microwave ovens?
Microwave ovens emit non-ionizing radiation, in the form of microwaves, that heats food. Standing at a distance recommended by the manufacturer poses no significant health risk as the radiation decreases quickly with distance. Following safety guidelines and using a properly functioning microwave typically results in minimal exposure to radiation.
What is the relationship between the electric potential of a charged rod and its distance from a point in space?
The electric potential of a charged rod decreases as the distance from a point in space increases. This relationship is described by the inverse square law, where the electric potential is inversely proportional to the square of the distance from the charged rod.
What is the relationship between the electric potential and electric field according to the equations V kq/r and E kq/r2?
The relationship between electric potential (V) and electric field (E) is that the electric field is the negative gradient of the electric potential. This means that the electric field is the rate of change of the electric potential with respect to distance. The equations V kq/r and E kq/r2 show that the electric field is inversely proportional to the square of the distance from the charge, while the electric potential is inversely proportional to the distance from the charge.
How can I safely cook food using a microwave without radiation exposure?
To safely cook food in a microwave without radiation exposure, use microwave-safe containers and cover food with a microwave-safe lid or vented plastic wrap. Follow cooking instructions and avoid standing directly in front of the microwave while it's in use. Check for any leaks or damage to the microwave door seal and maintain a safe distance while the microwave is operating.
Is standing by a mirowave bad for you?
Standing near a microwave while it's in use is generally safe. Microwaves are designed with safety features that prevent exposure to radiation when the door is closed. It is recommended to maintain some distance when the microwave is in use to avoid any potential exposure to heat or steam.
Is gravity and distance conversely proportional?
No. The word is "inversely", not "conversely". And the force of gravity is inversely proportional to the square of the distance.
What describes any physical phenomenon that varies inversely with the square of the distance from the source?
Any physical phenomenon that varies inversely with the square of the distance from the source follows the inverse square law. This means that as the distance from the source doubles, the intensity or strength of the phenomenon decreases by a factor of four. Examples include the intensity of light, gravity, and electromagnetic radiation.
Offer a rationalization why the Bjerrum length is inversely porportional to temperature?
The Bjerrum length is the separation distance at which the potential electric energy of two elementary charges is equal to kB*T. The electric potential energy of two elementary charges is inversely proportional to their separation distance. Since kB*T is trivially proportional to temperature T, at a higher temperature you need to place two elementary charges closer to each other to get the electric potential energy equal to kB*T. As the separation distance between those charges is defined as the Bjerrum length, the Bjerrum length is inversely proportional to temperature.
What is the electric potential inside a parallel-plate capacitor and how does it relate to the charge and separation distance of the plates?
The electric potential inside a parallel-plate capacitor is directly proportional to the charge on the plates and inversely proportional to the separation distance between the plates. This means that as the charge on the plates increases, the electric potential also increases, and as the separation distance between the plates decreases, the electric potential increases.
How does the electric potential energy between two positive charged particles change if the distance between them is reduced by a factor of 3?
The electric potential energy between two positive charged particles will increase by a factor of 9 (3 squared) if the distance between them is reduced by a factor of 3. This is because the potential energy is inversely proportional to the distance between the charges squared.
