The change in speed is the cause and the change in direction (refraction) is the effect. Flickr Physics Photo Laser light shown passing through a rectangular block of lucite. It enters the block along the normal line with an angle of incidence of 0Â°. There is no bending upon entering, nor upon leaving the block.
There are 237 calories in 1 cup of Refried Beans (Canned). Calorie breakdown: 12% fat, 67% carbs, 21% protein.
3. Eat beans a few times a week. Beans offer more fiber than most plant foods, plus they're loaded with healthy plant protein. 1  1 cup of canned minestrone soup = about 5 grams fiber.  1/2 cup vegetarian or fat-free refried beans, used to make microwave nachos = about 6 grams.