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Waves Vibrations and Oscillations
From pendulums, to sound, to Schrödinger's equation, waves and vibrational motion are of fundamental importance to all of the disciplines of physics. Please direct all questions concerning the causes, mechanics, applications, and significance of oscillatory behavior into this category.
5,382 Questions
What is a pendulum in science?
A pendulum is a piece of string attached to a 20 g mass that if you double the length it will take twice as long to swing.
Waves travel in groups due to the phenomenon known as wave grouping or wave packet formation, which occurs when individual waves with similar frequencies and speeds combine. This interaction can amplify certain waves while minimizing others, leading to the distinct grouping effect. Additionally, factors like wind patterns, currents, and the seabed's topography can influence how waves interact, reinforcing the tendency for waves to travel in clusters. Consequently, these groups can create more powerful and organized wave patterns, which are more efficient at transferring energy.
The frequency of a light wave with wavelength 0.005 meters is Hz?
Well, darling, to find the frequency of a light wave, you need to use the formula speed = frequency x wavelength. Since the speed of light is approximately 3 x 10^8 m/s, you can rearrange the formula to find frequency = speed / wavelength. Plug in the values and you'll get the frequency in Hz. Just don't forget to carry the one, honey.
What is the frequency of light that has a wavelength of 4.25 x 10-8 meters meters?
Since, frequency, f = c / λ
Then, λ = 405 x 10-6 cm = 4.05 x 10-10 m
Speed of light c = 299,792,458 m/s
Therefore, frequency f = 299,792,458 m/s / 4.05 x 10-10 m = 740,228,291,358,024,691 Hz = 7.40 x 1017 Hertz.
The Franklin oscillator is a type of electronic oscillator circuit that generates a sinusoidal waveform at a specific frequency. It typically consists of a feedback network with capacitors and inductors that determine the frequency of oscillation. The oscillator is named after its inventor, William R. Franklin. The Franklin oscillator is commonly used in radio frequency (RF) applications due to its stability and accuracy in generating precise frequencies.
What is the frequency of light that has a wavelength of 310nm?
c = λν
3x10^8 m/s = 310x10^-9 m (ν)
ν = 9.68x10^14 Hz
To determine the wavelength of the radio waves, we can use the formula: wavelength = speed of light / frequency. The speed of light is approximately 3 x 10^8 meters per second. Converting the frequency to hertz gives us 1.76 x 10^9 Hz. Plugging these values into the formula, we get a wavelength of approximately 0.17 meters or 17 centimeters.
What did you observe about the products of frequencies and wavelength?
The product of frequency and wavelength in a wave is a constant value, which is the speed of the wave. This relationship is described by the wave equation, v = fλ, where v is the speed of the wave, f is the frequency, and λ is the wavelength. This means that as the frequency of a wave increases, its wavelength decreases proportionally to maintain a constant speed. Conversely, if the frequency decreases, the wavelength increases to maintain the same speed.
Why cannot a wein bridge oscillator generate high frequencies?
In general, these kinds of Op-Amp-based Wien Bridge Oscillators cannot operate above 1 MHz due to the limitations imposed on them by their open-loop gain. The circuit is observed like a Wien bridge on RC series network of one arm and the parallel RC network in for another arm. Cardiologist in Ambattur care providers in Ambattur, offering comprehensive and compassionate care for a wide range of neurological conditions. Led by a team of highly skilled and experienced neurologists, the clinic is dedicated to improving the quality of life for patients through accurate diagnosis, advanced treatments, and personalized care plans.
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What is amplitude sensitivity?
It refers to how small a signal a receiver can process. All receivers have a "minimum discernable signal" (MDS). Below that level, background noise (static) will be all that you can hear. Your car radio may not process a 1,000 watt signal from a station 1,000 miles away but NASA has receivers that can process 0.1 watt signals from millions of miles away. A lot of it has to do with filtering and the number of amplification stages involved.
How fast does light travel through acrylic?
it travels faster in water because it is less optically dense then acrylic
Which property do all electromagnetic waves have in vacuums?
All electromagnetic waves travel at the speed of light in a vacuum.
Yes, ants can sense vibrations through specialized cells located on their bodies. This ability helps them communicate with each other, locate food sources, and detect potential threats in their environment.
The speed of light is a constant, 299 792 458m/s, usually rounded to 3.0 x 108m/s.
Their are three proportions involving the speed of light that are the underlying
principles that make electromagnetic radiation travel at a fixed speed.
c = ƒ• λ, means that the speed of light, c, is directly proportional to the frequency, f,
and wavelength, λ.
ƒ = λ/ c, means that the frequency, f, of a wave is directly proportional to the
wavelength, λ, and inversely proportional to the speed of light, c.
λ = ƒ/c, means that wavelength is directly proportional to the frequency, f, and
inversely proportional to the speed of light, c.
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The first line above is correct. That is indeed the speed of light in a vacuum.
And now, to try and answer the question:
The speed of electromagnetic waves is the result of the electrical characteristics of
whatever they're moving through, whether vacuum or something else. The Physicist
who developed the theory of electromagnetic waves ... James Clerk Maxwell ... worked
out all the math in the 1870s, and right there in his math was a number that had to be
the speed of these waves. That was one reason why so many scientists worked so hard
from that time on to measure the speed of light. If it turned out to be the same as the
number in Maxwell's math, then that outcome would strongly support two conjectures:
#1). That light is an electromagnetic wave, and #2). That Maxwell probably knew what
he was talking about, and his whole theory of electromagnetic waves could be depended on.
Ever since then, the more accurately the speed of light is measured, the closer the
measurement comes to Maxwell's prediction for it.
What is length of 2nd pendulum on moon?
The length of a pendulum that has a period of 2 seconds is approximately 0.25 meters on Earth. On the moon, where gravity is about 1/6th of Earth's gravity, the length of a 2-second pendulum would be about 0.73 meters.
How far do you need to be to avoid blindness from an open door microwave?
That would depend on the operating power level of the device, the contents of
the cooking chamber, and the exact angle from the sides of the oven to you.
A microwave oven that's able to run with the door open is hazardous to people
anywhere near it. DO NOT RUN IT. It must be unplugged, and repaired by a
technician who is factory-certified and knows what he's doing, before it's used
again. Take it from an Electrical Engineer with 35 years' microwave experience:
Do NOT call people into the kitchen and say "Hey look what the microwave is doing".
It is nothing to play around with !
What process is energy transferred when sound waves travel through the air?
Energy transfer in sound waves traveling through air occurs through the compression and rarefaction of air molecules. The sound source creates vibrations that cause these molecules to compress and expand, transferring energy as a wave through the air. This transfer of energy is what allows us to hear the sound.
Which electromagnetic waves are used for communication in space?
Radio waves are predominantly used for communication in space due to their long wavelengths that enable them to travel long distances without much interference. These waves are able to penetrate Earth's atmosphere and travel through space to reach distant spacecraft and satellites.
Does infred waves have the same wavelength as visible light waves?
No, infrared waves have longer wavelengths than visible light waves. Infrared waves have wavelengths ranging from about 700 nanometers to 1 millimeter, while visible light waves have wavelengths ranging from about 380 to 750 nanometers.
Most physicists are convinced they do exist. The Laser Interferometer Gravity Wave Observatories (LIGO) were built to detect gravity waves from colliding neutron stars, supernova, and other space-time fabric disturbing events.
What facts happen in the Christchurch earthquake?
The Christchurch earthquake occurred on February 22, 2011, in New Zealand. It had a magnitude of 6.3 and caused widespread damage to buildings and infrastructure in the city. The quake resulted in 185 fatalities and thousands of injuries.
Are rotating stars that emit directional beams of radio waves?
Yes, rotating stars can emit directional beams of radio waves. This phenomenon is known as pulsars, which are rapidly rotating neutron stars that emit beams of electromagnetic radiation, including radio waves, along their magnetic axes. The regular pulsing of these beams as they sweep across our line of sight gives the appearance of a pulsating or blinking star.
What type of star gives out regular pulses of radio waves?
Pulsars. They are very dense neutron stars that rotate quickly and very regularly, emitting radiation pulses towards the earth like a lighthouse.
