Please help me physics problems can u help me in 15 mins
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36. Screw guage .
37. Determined by the formula of the shapes .
38. When temperatures increase, objects expand and become larger and therefore the density decreases. When temperatures decrease, objects condense and become smaller so density increases.
39. Astronomers estimate the distance of nearby objects in space by using a method called stellar parallax, or trigonometric parallax.
40. Kilogram (kg), basic unit of mass in the metric system. A kilogram is very nearly equal (it was originally intended to be exactly equal) to the mass of 1,000 cubic cm of water. The pound is defined as equal to 0.45359237 kg, exactly.
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