Answer:
30,000,000,000 Hz
Explanation:
I searched it up and got 3 x 10^10 and thats 30000000000
The number of molecules decreases.
Answer:
The candle ran out of oxygen
Explanation:
There is a concept known as the fire triangle, the three things present for a fire to start and burn. Heat, Oxygen, Fuel. Take any one of the three away and the fire goes out. Pour water on a fire, and it absorbs the heat, put a jar over it, it removes the oxygen, stop adding wood to a campfire it goes out.
The radiosity of this surface is 299.95W/m².
<h3>
Calculation :</h3>
Given, € 0.8
Ta=0°C 273K
For opaque body., T = 0
a+ p = 1
€ = a (Kirchoff's Law)
p = (1-E)
Radiosity = leaving energy from the surface
= px 240 +€σT4
= (1-E) × 240 +0.8 x 5.67 x 10-8 (2734)
= (1-0.8) × 240 +0.8 x 5.67 × 10-8 (2734)
= 299.95W/m²
So, now after doing the calculations we can say that the radiosity of the surface was 299.95W/m².
To know more about Radiosity please click here : brainly.com/question/14937321
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