One penny weighs 2.5 grams, so 3,500 pennies weigh 8,750 grams.
How much does a 2 liter of pennies weigh?
100 pennies = £1£3500 = 3500 * 100 = 350,000 pennies
9000 pennies weigh
3500
3500
7000
Depends on whose pennies (which country) and the force of gravity which is not uniform.
5,580,000 lbs
60.6172 pounds
167,500 grams
209.439 pounds
3000 to 3500, most likely.