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Q. A 4 cm tall candle flame is 2.0 m from a wall. You happen to have a lens with a focal length of 42 cm. For each location, what is height of the image?

Q. What are (a) x component and (b) y component of a vector in the xy plane if its direction is 329° counter clockwise from the positive direction of the x axis and its magnitude is 9.0 m?

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