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).
The calories in peanut butter and jelly sandwich can vary depending on the type of bread and jam that you use, but if you make a typical PB &J with two slices of Wonder Bread, one tablespoon of Smucker's Grape Jelly, and two tablespoons of peanut butter, the snack would provide about 380 calories.