Question

Use dimensional analysis to determine how many centimeters are in 15 kilometers.A. 15,000 cmB. 1,500 cmC. 1,500,000 cmD. 150 cm

Answer 1

In order to find how many centimeters are in 15 kilometers, we can use the following conversion rate:

1 km = 100,000 cm.

So, for 15 kilometers, we have:

`15\text{ km}=15\cdot(100,000\text{ cm})=(15\cdot100,000)\text{ cm}=1,500,000\text{ cm}`

Therefore the correct option is C.