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  1. slyvester63

    integrating absolute value

    hello, does anyone know if there will be a question asking you to find the integration of absolute value? i mean if there is how can u solve 'em?
  2. slyvester63

    need help on "Black body radiation"

    Hey i got so confused with this definition and also other stuff. i'm just an ESL student so can somebody give me a good definition for this? Thank's 1. what is this black body radiation? 2. whats with the curve of the lines? isn't it as the temperature increases, the peak moves toward the...
  3. slyvester63

    Question about the moon

    Hi everyone, what do you think of the answer for this? 1. If the Earth's gravity has been pulling on the moon for billion years. explain why the moon has not already fallen down and crashed onto earth? 2. Explain why a total eclipse of the Sun is a very rare event at any one place on Earth?
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