What is the richter scale reading for an earthquake
Measured on the Richter scale, the magnitude of an earthquake of density I is defined as R = log (I/I0) where I0 is a minimum level for comparison. What is the Richter scale reading for an earthquake for which I=72,000,000I0?
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Estimate the amount of water this cyclist must evaporate per hour (through sweat) to get rid of excess body heat she produces. Assume a skin emissivity of .70
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Non-relativistic protons accelerated by a potential difference U form a round beam with current I. Find the magnitude and direction of the Poynting vector outside the beam at a distance r from its axis.
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Calculate the hydronium and hydroxide ion concentrations in the solution. Then calculate the mass of magnesim hydroxide needed to make 250ml of the solution.
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Diamonds have successfully been prepared by submitting graphite tohigh pressure. Calculate the approximate minimum pressure needed using ΔfG=0 for graphite andΔfG=2.90 x 103 J/mol for diamond.
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