Assumption: Earth is a perfect blackbody. This means that the emissivity (ε) is 1.
Earth’s radius = 6371 km
Incident solar radiation = 1367 W/m2
Temperature in space = 0 K
I'm given the above data. I tried using the E= σεTe4 but that doesnt include the radius of the Earth :S
I know 1BTU = 1055J
1lb = 1/2.2046 kg
1 F = 255.928 K
then 1 BTU/lbF should be 1055/(1.2046)*255.928. But I get 9 plugging this in
the value is suppose to be 4186 J/kgK. this is the specific heat of water
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I get what Michael Faraday did, applying force to a...
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2. Assists the rocket to easily produce the necessary escape velocity
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I don't get why nothing can be faster than light.
I know Einstein postulated that speed of light is constant and mass increases and energy increase.
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What is the major difference or differences of Inertial and non-Inertial frame of reference??
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Non-inertial - Acceleration, disobeys the law of inertia
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I still don't understand the meaning of relative.
I cannot breach onto the concept of Einstein's Principles of Relativity without knowing the meaning of it!!!
I searched the internet but all of the definitions listed makes no sense to me..