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Author Question: A person standing in the street is unaware of a bird dropping that is falling from a point directly ... (Read 79 times)

Chelseaamend

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on: Aug 6, 2020

Question 1

A jet plane has a sound level of 150 dB. What is the intensity in W/m2?

◦
1

◦
100

◦
10

◦
1 000

◦
10 000


Question 2

A person standing in the street is unaware of a bird dropping that is falling from a point directly above him with increasing velocity. If the dropping were producing sound of a fixed frequency, as it approaches the person would hear the sound

◦
drop in frequency.

◦
stay at the same frequency.

◦
increase in frequency.

◦
decrease in loudness.

◦
stay at the same loudness.
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by Chelseaamend on Aug 6, 2020

nothere

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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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Chelseaamend

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Reply 2 on: Aug 6, 2020
YES! Correct, THANKS for helping me on my review

daiying98

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Reply 3 on: Yesterday
:D TYSM

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