HELP ASAP Indicate what happens to the resonant frequency of a mass-and-spring system which acts as simple harmonic oscillator when the following things are changed:

Only the spring constant, k, of the mass-and-spring system is increased.

Only the mass of the mass-and-spring system is increased.

Only the amplitude of the mass-and-spring system is increased.

Choices: Frequency increases, decreases or stays the same.

Shown from explanation.

Explanation:

The resonant frequency is related by the formula;

Fo= 1/2π√(K/M)

Where Fo is resonant frequency

M is mass

K is the spring constant

From the expression above;

When K is increased frequency would increases since frequency is directly proportional to spring constant.

Similarly when the mass is increased the frequency decreases since frequency is inversely proportional to the mass.

Amplitude is a property of a wave and so the frequency stays same.

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a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid