The reflector is the surface of a medium of greater density than that through which the incident sou â¦ nd travels, and it can be the surface of water, or a density-boundary caused by sharp temperature or salinity differences in the sea.
A typical ham and cheese sandwich provides nearly 16 grams of fat. An egg and cheese sandwich provides nearly 400 calories and 20 grams of fat and a peanut butter and jelly sandwich provides about 350 calories (although you can make a healthier peanut butter and jelly sandwich).
Footlongâ¢ sandwiches. Subwayâs low-fat footlongâ¢ sandwiches are, quite literally, a double version of the 6â sandwiches. The same eight varieties are available and range in calories from 460 for the Veggie DeliteÂ® to 750 for the Sweet Onion Chicken Teriyaki and provide 4.5 to 10 g total fat.