If your Lincoln Memorial penny has a date before 1982, it is made of 95% copper. If the date is 1983 or later, it is made of 97.5% zinc and plated with a thin copper coating. For pennies dated 1982, when both copper and zinc cents were made, the safest and best way to determine their composition is to weigh them. Solid copper pennies weigh 3.11 grams (+/- 0.130 g.), whereas the copper plated zinc pennies weigh only 2.5 grams (+/- 0.100 g.).
Report Abuse. 1  Vibrations In Abdomen. Source(s): https://shrinkurl.im/a8czv. 2  For the best answers, search on this site https://shorturl.im/awgvM. If by stomach, you mean your abdomen, that's your intestines, and it's probably gas. 3  Sounds like it could just be little bubbles of gas.
The human body is an amazing machine, and every once in a while it will do something to remind you that it's working hard to keep you alive and well. The stomach growl is one of these reminders. Loud, soft and sometimes for no good reason at all, your growling stomach has a lot to say. Whether you call it grumbling, rumbling, gurgling or growling, from time to time everybody's belly chimes in. These noises might sound like they should be coming from a noisy pot of bubbling stew rather than your stomach.