Match each sound feature to its description amplitude

the density of the medium's particles

at the compressions of the wave

compression

the part of a wave where the particles

of the medium are farther apart

wavelength

the distance between compressions

or rarefactions

rarefaction

the part of a wave where the particles

of the medium are closer together

Intro

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tivity

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GOS

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

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=