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In 2.10 h, a balloon drifts 16.9 km north, 5.16 km east, and 3.23 km upward from its release point on the ground. Find (a) the magnitude
of its average velocity and (b) the angle its average velocity makes with the horizontal.
(a) Number 8.55
(b) Number
79.63
Units
Units
km/h
*(degrees)

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