Answer:
vw = fλ
Explanation:
Sound, like all waves, travels at a certain speed and has the properties of frequency and wavelength. You can observe direct evidence of the speed of sound while watching a fireworks display. The flash of an explosion is seen well before its sound is heard, implying both that sound travels at a finite speed and that it is much slower than light. You can also directly sense the frequency of a sound. Perception of frequency is called pitch. The wavelength of sound is not directly sensed, but indirect evidence is found in the correlation of the size of musical instruments with their pitch. Small instruments, such as a piccolo, typically make high-pitch sounds, while large instruments, such as a tuba, typically make low-pitch sounds. High pitch means small wavelength, and the size of a musical instrument is directly related to the wavelengths of sound it produces. So a small instrument creates short-wavelength sounds. Similar arguments hold that a large instrument creates long-wavelength sounds.
The relationship of the speed of sound, its frequency, and wavelength is the same as for all waves: vw = fλ, where vw is the speed of sound, f is its frequency, and λ is its wavelength. The wavelength of a sound is the distance between adjacent identical parts of a wave—for example, between adjacent compressions as illustrated in Figure 2. The frequency is the same as that of the source and is the number of waves that pass a point per unit time.
Answer:
HAZMAT certificate
Explanation:
If you face an investigation where dangerous substances might be around, you may need to obtain a HAZMAT certificate.
Hazmat is the shortened form of the word "hazardous materials," which the United State Department of Transportation recognized as materials that could adversely affect people and also the environment. Hazmat certification is required to be obtained by workers who remove, handle, or transport hazardous materials. This comprises careers in transportation and shipping, firefighting and emergency rescue, construction and mining, as well as waste treatment and disposal. Workers who are also in manufacturing and warehouse storage may also come across hazardous substance or materials risks while on their jobs. Certification involves having the knowledge of the risks and safety measures for handling these materials.
Answer:
Option A i.e., software package.
Explanation:
Prewritten, available on the market the software packages, which not necessitate a company's desire to actually compose its software for certain functionalities, will be applied to as software packages.
A software package is essentially a finite number of programs or software components that function together so that they achieve different tasks and objectives.
On a Windows PC, My Computer is a folder on the desktop. Alternatively, you can click on Start and access My Computer from that menu.
Climate change, habitat destruction, and over-harvesting leading to a decrease in caribou populations. ... There are many possible causes of this decline, including: habitat destruction, climate change, and over harvesting.
