When driving a Toyota avensis car along a straight road for 16.5km at 50km/h, it suddenly runs out of fuel and stopped. Over the next 20min,
you walked another 2.5km further along the road for a petrol station.
Determine the average velocity of your journey from beginning of your
drive to your arrival at the fuelling station.
A 10.Oms-1
B. 8.Oms
C. 6.Oms D. 4.0ms 1

Alkaline earth metals are found in group 2 of the periodic table.

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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