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A man pulls a sled up a 600 m track which is at an angle of...

A man pulls a sled up a 600 m track which is at an angle of 15.0 ∘with respect to the horizontal. What altitude does it gain?

If the radius of a sphere becomes four times the original, its surface area will be changed by which factor? (Show all work)

A banana is thrown down with a speed of 15 ms-1 from a tree top. The banana hits the ground after 2.0 s. What is the height of the tree? (air resistance is negligible)

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