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).
I personally could not believe there could be so many calories in some subway sandwiches: 1  double meat italian BMT â 6 inch: 630 calories, foot long: 1260 calories. 2  chicken&bacon ranch â 6 inch: 580 calories, foot long: 1160 calories. 3  meatball sandwich â 6 inch: 540 calories, foot long: 1080 calories.