Which statement best describes frequency and pitch?

Physics

2 answers:

Crazy boy [7]3 years ago

8 0

A. frequency and pitch are the same as wavelength and velocity.

Sorry if im wrong

balandron [24]3 years ago

6 0

<h2>Answer:</h2>

<u>The right choice is </u><u>D. Pitch is how frequency is perceived</u>

<h2>Explanation:</h2>

Pitch perception allows us to order sounds on a musical scale. In simpler words pitch is the quality that makes it possible to judge sounds as "higher" and "lower" in the sense associated with musical melodies. So it is related to frequencies in the term that a sound having higher frequencies will have higher pitch and vice versa. SO we distinguish the sounds pitch by their frequencies.

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The electric field in a region is uniform (constant in space) and given by E-( 148.0 1 -110.03)N/C. An additional charge 10.4 nC

enyata [817]

Answer:

The y-component of the electric force on this charge is $F_y = -1.144\times 10^{-6}\ N.$

Explanation:

<u>Given:</u>

Electric field in the region, $\vec E = (148.0\ \hat i-110.0\ \hat j)\ N/C.$
Charge placed into the region, $q = 10.4\ nC = 10.4\times 10^{-9}\ C.$

where, $\hat i,\ \hat j$ are the unit vectors along the positive x and y axes respectively.

The electric field at a point is defined as the electrostatic force experienced per unit positive test charge, placed at that point, such that,

$\vec E = \dfrac{\vec F}{q}\\\therefore \vec F = q\vec E\\=(10.4\times 10^{-9})\times (148.0\ \hat i-110.0\ \hat j)\\=(1.539\times 10^{-6}\ \hat i-1.144\times 10^{-6}\ \hat j)\ N.$