Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the eardrum is about 8.4 mm in humans. When someone speaks to you in a normal tone of voice, the sound intensity at your ear is approximately 1.0×10−6W/m2.

How much energy is delivered to your eardrum each second?

= 5.54 × 10⁻¹¹J/s

Explanation:

I = P / A

A = πr²

r = 8.4mm/2

 = 4.2mm

 = 4.2 × 10⁻³m

A = 3.143 × (4.2 × 10⁻³m)²

= 55.4425 × 10 ⁻³m²

P = A× I

  = (55.4425 × 10 ⁻³) (1.0×10⁻⁶)

  = 5.54 × 10 ⁻¹¹ J/s

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

e

explanation:

there is no change in the electric potential energy as it is in rest on both conditions.