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Abera
Questions (3)
A tree casts a shadow of 34 feet at the time when a 3-foot tall child casts a shadow of
1.7feet. Find the height of the tree?
1 answer
145 views
prove that two non zero vectors A and B are perpendicular if and only if, |A|<|A+tB| for every number t.
5 answers
1,493 views
a car of mass 500kg is moving 24 m/s. a lion of mass 100kg drops on to the roof of the car from an overhanging branch. show that
2 answers
503 views
