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Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.
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The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
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Physics, 22.06.2019 23:50
What is part of a line has one endpoint and continues in one direction?
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A musical instrument produces a beat frequency of 3 beats per second with another
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