Answer:
10.5 cm
Step-by-step explanation:
12÷9= 1.3 (1dp)
14÷(12÷9)= 10.5cm
Answer:
1
Step-by-step explanation:
Slope = Change in y/ Change in x
= (9-7)/(9-7)
= 2/2
Sound intensity: <span> 7.6 × 10-4 watts/m2?
To solve this problem you have to understand the threshold of hearing (Level)
</span><span>Io = 10^−12 W/m²
</span>
Solve the problem:
<span>"LI = 10×log (I / Io) dB = 10×log (7.6×10^−4 / 10^−12) dB"
</span>
and the answer is 88.81dB
Quoted answers are not mine. All credits to their internet owners.
Further help/Credits to:
https://answers.yahoo.com/question/index?qid=20130217095248AALXBjj
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