Refer to the sound levels on the decibel scale shown. The difference in sound levels, in...

   

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Refer to the sound levels on the decibel scale shown. The difference in sound levels, in decibels, can be found using the equation: P-B = 10 log where B-B is the difference in sound levels, and 1 is the ratio of their sound intensity. Rock Concert Loud Auto Horn Food Blender Loud Singing Normal Conversation. Quiet Whisper 130 dB 120 dB 110 dB 100 dB 90 dB 80 dB 70 dB 60 dB 50 dB 40 dB 30 dB 20 dB 10 dB 0 dB Threshold of Pain Rustling of Leaves Threshold of Hearing a. How many times as intense is a normal conversion compared to a quiet whisper? [1 mark] b. If the threshold intensity (I) is 1.0 x 10-2 W/m, how loud (in dB) would a noise that is 1.0 x 107 W/m be? [2 marks] c. What is the intensity of a sound that registers at the threshold of pain? [2 marks] In Canada, the federal tax rate you have to pay depends on your income bracket. 15% on the first $53,358 of taxable income. 20.5% on taxable income over $53,359 up to $106,717. 26% on taxable income over $106,717 up to $165,430. 29% on taxable income over $165,430 up to $235,675. 33% on any taxable income over $235,675. a. Write an expression that determines the Tax (T) as a function of income (i) for someone making more than $235,675. [3 marks] Refer to the sound levels on the decibel scale shown. The difference in sound levels, in decibels, can be found using the equation: P-B = 10 log where B-B is the difference in sound levels, and 1 is the ratio of their sound intensity. Rock Concert Loud Auto Horn Food Blender Loud Singing Normal Conversation. Quiet Whisper 130 dB 120 dB 110 dB 100 dB 90 dB 80 dB 70 dB 60 dB 50 dB 40 dB 30 dB 20 dB 10 dB 0 dB Threshold of Pain Rustling of Leaves Threshold of Hearing a. How many times as intense is a normal conversion compared to a quiet whisper? [1 mark] b. If the threshold intensity (I) is 1.0 x 10-2 W/m, how loud (in dB) would a noise that is 1.0 x 107 W/m be? [2 marks] c. What is the intensity of a sound that registers at the threshold of pain? [2 marks] In Canada, the federal tax rate you have to pay depends on your income bracket. 15% on the first $53,358 of taxable income. 20.5% on taxable income over $53,359 up to $106,717. 26% on taxable income over $106,717 up to $165,430. 29% on taxable income over $165,430 up to $235,675. 33% on any taxable income over $235,675. a. Write an expression that determines the Tax (T) as a function of income (i) for someone making more than $235,675. [3 marks]