1. (a) The diameter of a solid metal sphere is measured using a micrometersgauge. The diagram (Fig. 1.1) shows an enlargement of the

1. (a) The diameter of a solid metal sphere is measured using a micrometers gauge. The diagram (Fig. 1.1) shows an enlargement of the shaft of the micrometerre
gauge when taking the measurement
40
30
Fe 1
20
What is the diameter of the metal sphere?
121


[tex]1. (a) The diameter of a solid metal sphere is measured using a micrometers gauge. The diagram (F[/tex]

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  1. Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.

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