The weight of one US nickel is 5.0 grams so a kilo (1000 gm) contains 1000/5 = 200 coins (exactly).
The weight of one Canadian nickel is 3.95 gm so a kilo contains 1000/3.95 = 235 coins, rounded to the nearest whole number.
US nickels weigh 5.00 gm each so you'd need 1000/5 = 200 coins
Most Canadian nickels made since 2000 weigh 3.95 gm each so you'd need 1000/3.95 = 254 coins, rounded up to the next full nickel. A more precise figure is 253.16 so if you only needed to approximate a mass of 1 kg, 253 coins would be closer.
All US nickels weigh 5.00 gm so you need 1000/5 = 200 coins to have a mass of 1 kg.
Current Canadian nickels weigh 3.95 gm so you need 1000/3.95 = 254 coins, rounded to the next whole number.
200,000 nickels are needed
20 nickels = $1.00
how many nickels would it take to stack nickels 100 inches tall
70
It depends on the economy, they make as many as needed.
A nickel is 5 cents. $2.75 is 275 cents. 275 / 5 = 55 nickels.
24
There are 13 stacked nickels in an inch, 12 inches in a foot and the Empire State building is 1250 feet high to the 102nd floor so 195,000 nickels would be needed.
That would be 19 nickels.
More information is needed. Please post a new, separate question stating how many nickels you save each week.
A stack of 1303 nickels.
25 would have 500 nickels. This is because there are 20 nickels in a dollar, and 25 multiplied by 20 is 500.