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In air an object weighs 15N when emerged in water it weighs 12N when emerged in another liquid it weighs 13N determine the density of the object and the other liquid
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An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.
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Select the correct answer. what does the process of natural selection involve?
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Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)
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In air an object weighs 15N when emerged in water it weighs 12N when emerged in another liquid it we...
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