Answer:
Crest to the lowest point on the wave trough
Explanation:
The amplitude of the wave is the height of wave as measured from the highest point on the wave that is known as peak or crest to the lowest point on the wave known as trough. Wave length refers to the length of wave from one peak to another but amplitude or height can be determine by measuring the distance from its crest to its trough.
The amplitude of a wave is the maximum distance, or 'height', from the equilibrium position to the crest (highest point) or trough (lowest point) of the wave. This represents maximum displacement of the wave from its rest position.
The amplitude of a wave refers to the distance from the equilibrium or midpoint of the wave (the rest position) to the highest point of the wave known as the crest, or to the lowest point known as the trough. For instance, considering a wave on a graph representing a sound wave, the crest would be the highest peak on the graph and the trough would be the lowest point. We can visually represent this extent as height, but it's actually a measurement of maximum displacement of the wave from equilibrium (rest position). For physical waves, such as sound or light waves, a larger amplitude leads to a louder sound or a brighter light.
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B) chemical
C) structural
D) physical and chemical
I'm going to say physical change
explanation:
The substance as you said did not change therefore a chemical change could not have happened because they result in a new substance meaning one or multiple new substances could have been created from the chemical change. With a physical change the only thing that changes is the outward appearance.
example of physical change: water changing into ice. The frozen water is composed of the same elements as the liquid water.
Hopefully this helped and good luck.
The wavelength of the wave will be 4 meters. when 5 complete waves occupy a length of 20m.
Wavelength is defined as the space between waves' crests, particularly between electromagnetic or sound wave points. A recurring event's frequency is measured by how many times it occurs in a unit of time. To underline the difference from spatial frequency, it is also occasionally referred to as temporal frequency.
There is an inverse relationship between the frequency and the wavelength of the waves as the wavelength increases the frequency decreases and if the wavelength decreases the frequency increases.
Given that a wave has 5 complete waves occupying a length of 20m. The wavelength of the wave will be calculated as below:-
λ = Distance / frequency
λ = 20 / 5
λ = 4 meters
Therefore, the wavelength of the wave will be 4 meters. when 5 complete waves occupy a length of 20m.
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B) one fixed position pulley attached to a fixed point above the object that is being lifted
C) no pulleys just a string attached to an object that is being lifted
D) one moving pulley attached to the object that is being lifted
Answer;
D) one moving pulley attached to the object that is being lifted
Explanation;
-Pulleys are powerful simple machines. They can change the direction of a force, which can make it much easier for us to move something.
-A fixed pulley consists of a wheel fixed to a shaft and is used in conjunction with a belt to transfer energy to another fixed pulley. A movable pulley consists of a shell, a movable wheel and a rope. Movable pulleys are also know as block and tackle.
-One moving pulley attached to the object that is being lifted decreases the amount of effort force needed to lift an object.