30,000??
I am assuming you mean how many pennies are in a thousand dollars. To do this you simply take a thousand (1,000) and multiplying it by one hundred (pennies in a dollar, 100). By doing that, you get 100,000 pennies to equal $1,000.
(Modern) Pennies on average way approximately 2 grams. So 2.5 pennies would make approximately 5 grams.
I think that you can use simple math for this question. For Example, it takes 10 pennies to make 10 cents or a dime. It would take 50 pennies to make 50 cents or 2 quarters. It would take 100 pennies to make 1 dollar bill and 500 pennies to make 5 dollars As we continue on this upward scale 20,000 pennies would make 200 dollars. 100,000 pennies would make 1000 dollars. 500,000 pennies would make it 5000 dollars. Do you see this trend? So if we know that 100 pennies equal 1 dollar then 1,000,000 multiplied by 100 pennies will give me a product of 1 x 10^8 or 100,000,000 or 1 million dollars. 100,000,000
11 pennies. Each is about 0.9 cm thick.
4.5 billion seconds.
statistically it takes 500 billion pennies
It would take 10 trillion pennies to make 10 billion dollars. This is a large amount of pennies. It would be enough to fill an entire 2,500 square foot house from top to bottom.
1000 pennies
Take 15 million, 15,000,000 and add two zero's to the end of it. 1,500,000,000. That would be 1 billion, 500 million pennies. That's a lot of pennies.
10000000000000000000000000000 pennies
Well, you need to grasp the concept of just how big a billion is. Did you know that 1 Billion seconds is equivalent to over 31 and a half years. So even if you saved one penny every second, it would still take you 31 years! In reality it is not likely there anything like that number of pennies in circulation, but in theory it would take you a very long time.
It would take 2 rolls of pennies to equal 1 dollar bill.
30,000??
Modern US cents are 3/4 of an inch wide, with an area of 0.442 square inches. The Sun is a sphere with a diameter of 865,000 miles, and a maximum cross-sectional area of about 587 billion square miles. To equal the area of the Sun's visible face, you would need 5.38 x 10^21 pennies (5.38 billion trillion pennies) - this could create a penny-thick disk the same size as the Sun. If you had to overlap the pennies rather than melt them down, it would take at least 6.85 x 10^21 pennies.
100 pennies
The Sun has a diameter of 865,000 miles, and if a penny is 5/8 inch across that means that 275 billion pennies would go round it once. The moles bit needs clarification.