The diagram shows waves of sound travelling through the air. An illustration of a point labeled sound source with concentric circles spreading out from it. Every other circle is 1 more meter away from the source. The sound source is 270 decibels. By which factor is the sound intensity decreased at 3 meters? StartFraction 1 over 9 EndFraction. StartFraction 1 over 3 EndFraction. StartFraction 1 over 2 EndFraction. StartFraction 1 over 4 EndFraction.

These models show the electron structures of two different nonmetal elements. which element is likely more reactive, and why? element 1 is more reactive because it has fewer electron shells and is toward the top of its group on the periodic table. element 1 is more reactive because it has more electrons in its valence shell and is farther to the right on the periodic table. element 2 is more reactive because it does not have a valence shell close to the nucleus, so it will attract electrons. element 2 is more reactive because it does not have a full valence shell, so it will attract electrons.

In automobile steering wheel is shown what is the ideal mechanical advantage blank? if the ama is eight what is the efficiency of the steering wheel?

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg