Recent content by Tineras

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    Relating solar energy area to power/time?

    Homework Statement Given Information: At midday, solar energy strikes the Earth with an intensity of about xxxW/m^2 Question: What is the area of a solar collector that could collect xxxMJ of energy in xxxHours ? Homework Equations The Attempt at a Solution I'm having...
  2. T

    Dropping the ball (HEEEEEEEELP)

    subtract the initial velocity and then divide by 2*s (2*9.8)/(2*.15) = a Subtracting will make the term negative, but the acceleration due to gravity (9.8) is negative and cannot be used under the SQRT. We know it is positive because to slow it down, we have to accelerate the object...
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    Dropping the ball (HEEEEEEEELP)

    First of all, I don't know why I asked about the mass because it's irrelevant. You have to do this in 2 steps. You will use the same equation 2 times. First, you need to find the final velocity (Vf) at the very bottom of the first meter. Then you can calculate the acceleration (a) by...
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    Dropping the ball (HEEEEEEEELP)

    When you say 20k, do you mean 20,000 lbs, 20 kg, 20,000 kg?? I don't people are interested in giving you the answer. They are more interested in leading you to the answer. I'm happy to help.
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