Sound can be best described as a mechanical wave and a disturbance in matter that is transmitted from its source outward. This disturbance can move in the form of periodic waves or longitudinal waves. The speed, frequency, and wavelength of a sound are interconnected and sound requires a medium to propagate.
Sound is best described as a mechanical wave, a type of disturbance in matter that is transmitted from its source outward. This movement can be in the form of periodic or longitudinal waves, implying that they move matter back and forth in the direction of the wave's motion. The speed of sound, its frequency, and its wavelength are interconnected, and this is described mathematically by the relationship v = fλ. This relationship shows that the velocity of sound (v) equates to the frequency (f) multiplied by the wavelength (λ).
Sound waves can be both audible and inaudible, originating from various sources, ranging from musical instruments to vocal voices to explosive bangs like a sonic boom. Also, to note is that sound is interpreted through our sense of hearing, and different frequencies and intensities create different sounds. Sound also has the ability to travel through different mediums, including solids, liquids, and gases, with varying speeds.
On a microscopic level, sound can be seen as synchronized oscillation of atoms. This type of motion is more organized than the thermal motion of the atoms. The behavior of sound waves is significantly different from light waves, as sound requires a medium to propagate, while light can travel in a vacuum.
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Answer:
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Explanation:
b. depletes natural resources
c. hazardous wastes
d. potential reactor accident
e. water pollution
Answer: a. air pollution
c. hazardous wastes
d. potential reactor accident
e. water pollution
A nuclear energy is produced in a thermal power plant. A nuclear energy is produced in a nuclear reactor. In nuclear reactor nuclear fission reactions takes place in which an atoms absorbs energy from radiations and undergo fission and produces energy in the form of high intensity radiations along with heat. Although the fission reactions takes place in a nuclear reactor in a controlled way so that the radiation may not leak out from the reactor. The accidentally leak out radiations or explosion or bursting of the reactor due to uncontrolled thermal energy production can result in air pollution as the leak out air will cause bursting effects which will contaminate the air.
The nuclear waste are radioactive and are non-biodegradable these wastes are disposed off deep in geospheres and in water. They have potential to contaminate both land and water. Radioactive wastes can cause mutations in the genome of the organisms exposed to these wastes which generate deadly diseases and disorders. Therefore, these wastes are hazardous.
Answer: Hazardous wastes and potential reactor accident.
Answer:
the work done on the car by the applied force is 75 J.
Explanation:
Given;
initial velocity of the car, v = 4 m/s
applied force in opposite direction, F = 5N
initial position of the car, x₀ = 5 m
final position of the car, x₁ = 20 m
displacement of the car, Δx = x₁ - x₀ = 20 m - 5m
= 15 m
The work done on the car by the applied force is calculated as follows;
W = F.Δx
W = 5 x 15
W = 75 J
Therefore, the work done on the car by the applied force is 75 J.
The right answer is 280 N.
When a woman stands with two feet on a scale, the scale reads 280 N and when she lifts one foot, the scale also reads 280 N because the weight of the other leg also comes on the one leg.
First, the whole weight of the body depends on two feet but when the second feet is lifted, the weight of the whole body including the lifted feet comes on the single feed so we can conclude that the right answer is 280 N
Learn more about scale here: brainly.com/question/2826496