Depends on which country's pennies.
5000g equates to 11.02 lbs
5000g
5000g if density is 1g/ml
8kg is 3kg larger than 5000g (5kg)
100 pennies equal $1.00.
5000g equates to about 11 (11.02311) pounds.
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pennys are 97.5% zinc and 2.5% copper
5000g each tonne
1
100,000,000,000,000
Answer5 kg.