Answer:
nnnnnnnahhhh thx for the points tho!
Explanation:
The speed of light is 299,792,458 meters per second in vacuum,
somewhat less in any material. How much less depends on the material.
Answer:
The black body temperature of Earth T_e= 180.4 K
Explanation:
Assuming we have to find Black body temperature of the earth.
S0= solar energy striking the earth= 343 Wm^{-2}
\alpaha = 30% = 0.3
\sigma = stephan boltsman constant.= 5.67×10^{-8} Wm^{-2}K^4
T_e= 180.4 K
<h2><u>Q</u><u>u</u><u>e</u><u>s</u><u>t</u><u>i</u><u>o</u><u>n</u>:-</h2>
The speed of a wave is 40 m/s. If the wavelength is 80 centimeters, what is the frequency of the wave ?
<h2><u>A</u><u>n</u><u>s</u><u>w</u><u>e</u><u>r</u>:-</h2>
<h3>Given:-</h3>
Velocity (V) = 40 m/s
Wavelength = 80 cm = 0.8 m
<h3>To Find:-</h3>
The frequency (F) of the wave.
<h2>Solution:-</h2>
We know,
40 = F × 0.8
F =
F = 50
<h3>The frequency of the wave is <u>5</u><u>0</u><u> </u><u>H</u><u>z</u>. [Answer]</h3>
<span>B. This is because P-waves is shorthand for Pressure-waves. Pressure waves compress and stretch along the direction of motion.</span>