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Darwin of 20th century? a) linneous. b) Aristotle. c)Ernst mayer. d) pastur.
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Darwin of 20th century? a) linneous. b) Aristotle. c)Ernst mayer. d) p...
The developement and existance of species in evolution was given by Charles Darwin ...the similar thing i.e. the concept of species was given by Earnst mayer in 20th century..dats why we can say dat Earnst mayer -"Darwin of 20th century"..
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Darwin of 20th century? a) linneous. b) Aristotle. c)Ernst mayer. d) p...
Ernest mayer is correct.
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Position of centre of massIn a uniform gravitational field the centre of mass coincide with the centre of gravity. But these two points do not always coincide, however. For example, the Moon’s centre of mass is very close to its geometric centre (it is not exact because the Moon is not a perfect uniform spher e), but its centre of gravity is slightly displaced towards Earth because of the stronger gravitational force on the Moon’s near side facing the earth. If an object does not have a uniform weight distribution then the center of mass will be closer to where most of the weight is located. For example, the center of gravity for a hammer is located close to where the head connects to the handle. The center of mass can be located at an empty point in space, such as the center of a hollow ball. The center of gravity can even be completely outside of an object, such as for a donut or a curved banana.Standing upright, an adult human’s centre of mass is located roughly at the center of their torso. The centre of mass rises a few inches when with rising arms.The center of gravity can even be at a point outside the body, such as when bent over in an inverted-U pose.An object is in balanced position if its center of gravity is above its base of support. For the two cylinders below, the left cylinder’s CG is above the base of support so the upward support force from the base is aligned with the downward force of gravity. For the cylinder on the right the CG is not above the base of support so these two forces cannot align and instead create a torque that rotates the object, tipping it over.Two similar blocks are shown below. The first block is top-heavy and the second block is bottom heavy. Where the centers of mass will be located?

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Darwin of 20th century? a) linneous. b) Aristotle. c)Ernst mayer. d) pastur.
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