Two people relaxing on a deck listen to a songbird sing. one person, only 1.66 m from the bird, hears the sound with an intensity of 6.86×10−6 w/m2.
a bird-watcher is hoping to add the white-throated sparrow to her "life list" of species. how far could she be from the bird described in example 14-8 and still be able to hear it? assume no reflections or absorption of the sparrow's sound.
express your answer using three significant figures.

the five characteristics of adolescence are biological growth and development, and undefined status, increased decision making, increased pressure and the search of self.

the best type of safety net in hard times is mortgage

mortgage is the part of wealth, property or any personal thing that can be kept with a lender to lend someone money in hard times. the lender puts a condition that if the borrower did not give the loan in return within the specific period of time then the borrower's property would become the property of lender. this in hard times because if the loan is taken then it needs to be returned and this might happen that no one is willing to you in giving loan, therefore mortgage can be in the case if no one is willing to give loan.