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An observer on the ground

The height of a rocket, launched from the ground, is given by the function y = 30t - 5t^2, where y is in meters and t is in
1. 1 answer
2. 67 views
An observer, whose eyes are 1.97 m above the ground, is standing 47.0 m away from a tree. The ground is level, and the tree is
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2. asked by bob
3. 611 views
An observer, whose eyes are 1.87 m above the ground, is standing 27.0 m away from a tree. The ground is level, and the tree is
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2. asked by Anonymous
3. 670 views
An observer is 28 m above the ground floor of a large hotel atrium looking at a glass-enclosed elevator shaft that is 26 m
1. 3 answers
2. asked by Noah
3. 605 views
An airplane is cruising at 340 km/h at an altitude of 4000 m. If the plane passes directly over an observer on the ground, how
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2. asked by Lori
3. 732 views
An observer is 20m above the ground floor of a large hotel atrium looking at a glass-enclosed elevator shaft that is 18m
1. 2 answers
2. asked by Sarah
3. 1,043 views
An observer is 20 m above the ground floor of a large hotel atrium looking at a glass-enclosedelevator shaft that is 20 m
1. 1 answer
2. asked by tom
3. 949 views
An observer is 20 m above the ground floor of a large hotel atrium looking at a glass-enclosedelevator shaft that is 20 m
1. 2 answers
2. asked by tom
3. 4,063 views
An observer is 31m above the ground floor of a large hotel atrium looking at a glass-enclosed elevator shaft that is 22m
1. 3 answers
2. asked by fredric
3. 2,933 views
An observer is 36m above the ground floor of a large hotel atrium looking at a glass-enclosed elevator shaft that is 26m
1. 1 answer
2. asked by Zee
3. 810 views