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Author Question: Determine the intensity (in W/m2) of a harmonic longitudinal wave with a pressure amplitude of 8.0 ... (Read 129 times)

neverstopbelieb

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on: Aug 6, 2020

Question 1

Calculate the pressure amplitude (in N/m2) of a 500 Hz sound wave in helium if the displacement amplitude is equal to 5.0 × 10−8 m. (ρ = 0.179 kg/m3, v = 972 m/s.)

◦
3.5 × 10−2

◦
1.6 × 10−2

◦
2.7 × 10−2

◦
4.2 × 10−2

◦
2.0 × 10−2


Question 2

Determine the intensity (in W/m2) of a harmonic longitudinal wave with a pressure amplitude of 8.0 × 10−3 N/m2 propagating down a tube filled with helium. (ρ = 0.179 kg/m3, v = 972 m/s.)

◦
3.7 × 10−7

◦
1.8 × 10−7

◦
9.2 × 10−8

◦
4.6 × 10−8

◦
1.5 × 10−9
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by neverstopbelieb on Aug 6, 2020

tofugiraffe

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Reply #1 on: Aug 6, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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neverstopbelieb

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Reply 2 on: Aug 6, 2020
Excellent

peter

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Reply 3 on: Yesterday
Gracias!

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