The drawing shows a cube. The dashed lines in the drawing ar…
The drawing shows a cube. The dashed lines in the drawing are perpendicular to faces 1, 2, and 3 of the cube. Magnetic fields are oriented with respect to these faces as shown, and each of the three fields B→1{“version”:”1.1″,”math”:”B→1″}, B→2{“version”:”1.1″,”math”:”B→2″} and B→3{“version”:”1.1″,”math”:”B→3″} has the same magnitude. Note that B→2{“version”:”1.1″,”math”:”B→2″} is parallel to face 2 of the cube. Rank the magnetic fluxes that pass through the faces 1, 2, and 3 of the cube in decreasing order (largest first).
Read DetailsYou are trying to photograph your dog sitting in your backya…
You are trying to photograph your dog sitting in your backyard, but a tall hedge is blocking the view. However, as the drawing shows, a plane mirror reflects light from the dog into your camera. For what distance must you set the focus of the camera lens to snap a sharp picture of the dog’s image?
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