true
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It can have any shape that you like. The main point is that it is repeated for each period.
5.25 km gives you 5250 metres. because we have two digits after decimal point means we are splitting the main unit that is Km into hundred parts so each part of the kilometer has 10 metres in it so we have such 25 parts in the decimal part so 25 x 10 = 250 metres
a reference point is a place that you begin at that you have just ended at.for example.......... i started at my schools main office..(origin) i then walked to my locker...from their i went to my classroom...my locker would be a reference point.
Because it was found to be contradicted by observations when analysed in light of the laws of nature as discovered in the late 1600s. The main point is that the Sun was found to be many times more massive than the planets. The force of gravity on each planet acts equally on the Sun and the planet, but because the Sun is so much more massive it tends to stay in the same place.
relief