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mixas84 [53]
2 years ago
5

When a person speaks, a sound intensity is generated that is 600 times greater than when the person whispers. What is the differ

ence in decibels between the sound level when the person speaks compared to when she whispers
Physics
1 answer:
Charra [1.4K]2 years ago
5 0

Answer:

Originally :  Level = log I / I0

Currently: Level = 10 log I / I0

Level = 10 log 600 = 10 * 2.78 = 27.8

Note the term 1 bel = 10 decibels

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Answer:

15.4

Explanation:

F=m×(v, initial-v,terminal )/time

therefore, change of velocity=F×t/m

=9.6×8.2/5.1

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A 55 newton force applied on an object moves the object 10 meters in the same direction as the force. What is the value of work
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bonufazy [111]

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Explanation:

= 34 + 5 * 1.2465

= ‭40.2325‬

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A ship sets sail from Rotterdam, The Netherlands, intending to head due north at 6.5 m/s relative to the water. However, the loc
sattari [20]

Answer:

Explanation:

velocity of ship with respect to water = 6.5 m/s due north

\overrightarrow{v}_{s,w}=6.5 \widehat{j}

velocity of water with respect to earth = 1.5 m/s at 40° north of east

\overrightarrow{v}_{w,e}=1.5\left ( Cos40\widehat{i} +Sin40\widehat{j}\right)

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\overrightarrow{v}_{s,e} = - 1.15 \widehat{i}+5.54\widehat{j}

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