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If we're interested in knowing the rate at which light energy is received by a unit of area on a particular surface, we're really trying to figure out the A. luminous intensity. B. illuminance of a surface. C. luminous flux. D. incandescence.
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If we're interested in knowing the rate at which light energy is received by a unit of area on a particular surface, we're really trying to figure out the illuminance of a surface.
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Asked 10/3/2018 11:10:59 PM
Updated 292 days ago|2/14/2020 2:25:22 PM
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If we're interested in knowing the rate at which light energy is received by a unit of area on a particular surface, we're really trying to figure out the illuminance of a surface.
Added 292 days ago|2/14/2020 2:25:22 PM
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A tank with a flat bottom is filled with water to a height of 4 meters. What is the pressure at any point at the bottom of the tank?
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Updated 63 days ago|9/30/2020 7:13:11 AM
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A tank with a flat bottom is filled with water to a height of 4 meters. 39.2 KPa is the pressure at any point at the bottom of the tank. Solution: P=pgh P is pressure, g is the gravitational constant, h is the height. 9.8 x 4 = 39.2 KPa.

Added 63 days ago|9/30/2020 7:13:11 AM
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A package was determined to have a mass of 5.7 kilograms. What's the force of gravity acting on the package on earth
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Updated 158 days ago|6/27/2020 10:25:30 PM
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A package was determined to have a mass of 5.7 kilograms. The force of gravity acting on the package on earth is 55.86N.

F=ma , F = 5.7*9.8 = 55.86N.
Added 158 days ago|6/27/2020 10:25:30 PM
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Added 136 days ago|7/19/2020 9:12:28 PM
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Updated 250 days ago|3/27/2020 8:54:10 PM
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Added 250 days ago|3/27/2020 8:54:10 PM
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Updated 10/3/2018 11:19:35 PM
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