<h3><u>Answer;</u></h3>
A. If two in-phase waves arrive simultaneously at a point, their amplitudes add up.
<h3><u>Explanation;</u></h3>
- <u>According to the principle of superposition, when two waves of the same kind meet at a point in space, the resultant displacement at that point is the vector sum of the displacements that the two waves would separately produce at that point.</u>
- Interference involves the superposing of two or more coherent waves to produce regions of maxima and minima in space, according to the principle of superposition.
- Interference may be constructive or destructive; Constructive interference occurs when two or more waves arrive at the screen in phase with each other, such that the amplitude of the resultant wave is the sum of the amplitude of the individual waves.
- Destructive interference occurs when two or more waves arrive out of phase with each other and resultant wave has minimum amplitude.
Metallic bonds can occur between different elements to form alloy. In contrast to electrons that participate in both ionic and covalent bonds electrons are that participate in metallic bonds delocalize forming a sea of electrons around the positive nuclei of metals.
Answer:
391.67Hz
Explanation:
The fundamental frequency formula in string is expressed as;
Fo = V/2L
V is the velocity of the wave = 329m/s
L is the length of the string = 42cm = 0.42m
Substitute
Fo = 329/2(0.42)
Fo = 329/0.84
Fo = 391.67Hertz
Hence the fundamental frequency of a mandolin string is 391.67Hz
The answer is false, pumice is a rock formed from the smoggy powder that shoots out of a volcano called pumicite.
