A standing wave can occur only at specific frequencies that are called natural frequencies.
If you speak about seen light, the only way to make transparent glass not light transfering is coloring it with some colors that negate (filter) some other colors
a mixture of frequencies.
There must be genetic variation, the variation must be heritable, and there must be differential reproduction (due to competition).
Variations within a population. Variations mean traits that only certain individuals have that give the individual a greater or lesser chance of reproducing.
A new species can occur when;1. Change in allele frequencies-genetic drift can result in loss of alleles in a population-one allele becomes the only variation, becomes "fixed"2. Gene flow due to migration-movement of alleles into or out of a population3. Non-random mating-individuals have preferred mates rather than random4. Mutations-a change in DNA can be beneficial, neutral, or harmful5. Natural Selection-best adapted, more likely to survive
No. They can occur in the laboratory also.
only if your mom was there.
If you speak about seen light, the only way to make transparent glass not light transfering is coloring it with some colors that negate (filter) some other colors
If you speak about seen light, the only way to make transparent glass not light transfering is coloring it with some colors that negate (filter) some other colors
Plutonium occur in deposits of uranium ores but only in ultratraces. In the nature plutonium appear as a result of spontaneous natural fission of uranium isotopes a process with a very low cross section.
there are an infinite range of frequencies limited only by the mechanical limitations of the medium creating and transferring it.
a mixture of frequencies.
A standing wave pattern is a vibrational pattern created within a medium when the vibrational frequency of the source causes reflected waves from one end of the medium to interfere with incident waves from the source. This interference occurs in such a manner that specific points along the medium appear to be standing still. Because the observed wave pattern is characterized by points which appear to be standing still, the pattern is often called a standing wave pattern. Such patterns are only created within the medium at specific frequencies of vibration. These frequencies are known as harmonic frequencies, or merely harmonics. At any frequency other than a harmonic frequency, the interference of reflected and incident waves leads to a resulting disturbance of the medium which is irregular and non-repeating.
No. Many physical processes occur by artificial means. Boiling water on a stove or freezing it in a freezer is one common example.
Filter is an electronic device which passes specific frequency and attenuates all other.There are 4 types of filters: 1) Highpass - passes only high frequencies 2)Lowpass - passes only low frequencies 3)bandpass-passes only specefic band of frequencies 4)band reject-passes all frequencies excepting desired band
As for I only know, there's only earthquakes and volcanic eruptions...please help!
only one, we have 5MHz