The amount of energy E, in ergs, an earthquake releases is related to its Richter scale magnitude M by the equation log E = 11.8 + 1.5M.
Step-by-step explanation:
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A solution contains moles of hydrogen ions. Describe its pH level answer So, given a pH value of 5.5 you can find the hydrogen ion concentration: Diving by negative one and taking the inverse log gives you: Solving, you get: The hydrogen ion concentration of a solution with pH = 5.5 is 3.2*10-6M.
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In a certain room, its decibel level of sound is . What is the corresponding sound intensity in decibels? answer Sound intensity to decibels The Decibel Scale The decibel level of a sound having an intensity of 10–12 W/m2 is β = 0 dB, because log10 1 = 0. That is, the threshold of human hearing is 0 decibels. Each factor of 10 in intensity corresponds to 10 dB.
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Answer:
The amount of energy E, in ergs, an earthquake releases is related to its Richter scale magnitude M by the equation log E = 11.8 + 1.5M.
Step-by-step explanation:
answer
So, given a pH value of 5.5 you can find the hydrogen ion concentration: Diving by negative one and taking the inverse log gives you: Solving, you get: The hydrogen ion concentration of a solution with pH = 5.5 is 3.2*10-6M.
answer
Sound intensity to decibels
The Decibel Scale
The decibel level of a sound having an intensity of 10–12 W/m2 is β = 0 dB, because log10 1 = 0. That is, the threshold of human hearing is 0 decibels. Each factor of 10 in intensity corresponds to 10 dB.