To learn the properties of logarithms and how to manipulate them when solving sound problems. the intensity of sound is the power of the sound waves divided by the area on which they are incident. intensity is measured in watts per square meter, or \rm w/m^2.the human ear can detect a remarkable range of sound intensities. the quietest sound that we can hear has an intensity of 10^{-12}\; \rm w/m^2, and we begin to feel pain when the intensity reaches 1 \rm w/m^2 . since the intensities that matter to people in everyday life cover a range of 12 orders of magnitude, intensities are usually converted to a logarithmic scale called the sound intensity level beta, which is measured in decibels (\rm db). for a given sound intensity i, beta is found from the equation\beta=(10\; {\rm db})\log\left( \frac {i}{i_0} \right),where i_0=1.0\times 10^{-12}\; {\rm w/m^2}.use this technique to find a formula for the intensity i of a sound, in terms of the sound level beta and the reference intensity i_0. there will be a quantity (10 {\rm db}) involved in your calculations. when you enter your answer, leave off the unit \rm db. express your answer in terms of beta and i_0.

carbon is found in all living things. carbon atoms move constantly through

living organisms, the oceans, the atmosphere, and the earth’s crust in what is

known as the carbon cycle. the directions taken by carbon atoms through this

cycle are very complicated and can take millions of years to make a full circle.

all animals, from humans to the dinosaurs are part of the carbon cycle. when

animals eat food, they get carbon in the form of carbohydrates and proteins.

in animals, oxygen combines with food in the cells to produce energy for daily

activity and then gives off carbon. the carbon combines with oxygen to form

carbon dioxide (co2) and is released back into the atmosphere as a waste

product when animals breathe and exhale.

from 145-65 million years ago, earth was much

hotter than today and covered with dense,

tropical swamp forests. the trees and other

plants were immense and

provided an endless supply of

food for the giant animals that

roamed the land. somewhere in

the air above one of these

forests, a lone carbon atom has joined

up with two oxygen atoms to form a molecule of co2.

the co2 molecule was sucked into the tiny holes (stomata) on the leaf of a

fern plant and joined with sunlight, chlorophyll and water to make food and

energy in the plant’s cells through photosynthesis. the oxygen (o2) from the

co2 molecule was sent back into the atmosphere; the carbon atom (c) was

detached and used to make a molecule of sugar.

if that carbon atom had been eaten instead, a totally

different situation would have developed. let’s say

that a giant plant-eating dinosaur (herbivore) ate the

fern for breakfast, and swallowed the carbon in the

fern in the form of carbohydrates and proteins. in

the process of respiration, oxygen combined with

the carbohydrates and proteins in the dinosaur’s cells

to provide energy for its daily activity.  

a. spokes of a wheel.

as indicated in the question radial contains rad, also found in radius, so the fracture's would span the radius.

the awnser is d you right bro