Question

Q15.17 Both wave intensity and gravitation obey inverse-square laws. Do they do so for the same reason?Discuss the reason for each of these inverse-square laws as well as you can. block is attached to an ideal spring and is mov ing in SHM on a horizontalfrictionless surfaceThe amplitude of the motion is 0.120 m.The maximum speed of the block is 3.90 m/s.What is the maximum magnitude of the acceleration of the block?

Answer 1

(a) Intensity obeys inverse square law from basis of light passing through a given surface.

(b) Gravitation obeys inverse square law from the basis of force between two masses.

(c) The maximum magnitude of the acceleration of the block is 126.75 m/s².

What is intensity?

Intensity is the ratio is ratio of power to area of a given surface.

I = P/A (W/m²)

where;

• P is power
• A is area

Universal gravitation law

$F = \frac{Gm_1m_2}{r^2}$

Intensity and gravitation do not obey inverse square law for same reason;

• Intensity obeys inverse square law from basis of light passing through a given surface.
• Gravitation obeys inverse square law from the basis of force between two masses.

Acceleration of the block

a = v²/A

a = (3.9²)/0.12

a = 126.75 m/s²

Learn more about acceleration here: brainly.com/question/605631

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