Fill in the blanks with the correct values to two significant figures assuming sound propagates as a spherical wave. If the intercity of a sound is Io at a given location and then the distance to the sound source is doubled the intensity decreases to a ___Io and the decibel level decreases by ___dB.

Gather reliable information to brent make his decision. to gather this information, use newspapers, call insurance companies or look at their web sites, and review consumer magazines and web sites. also, look at the manufacturer web site or for information about gas mileage. list the sources you use and take notes.

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.