Question

first, fill in the blank below with the correct unit. then use scientific notation to represent the quantity in meters. your answer the thickness of a coin is about 2.15 centimeters. writing in scientific notation, this is 215 × 10³ meters.

Explanation:

Step1: Convert centimeters to meters

Since 1 centimeter = 0.01 meters = $1\times10^{- 2}$ meters, for 2.15 centimeters, we multiply 2.15 by $1\times10^{-2}$.
$2.15\times10^{-2}$ meters

Step2: Check scientific - notation form

Scientific notation is of the form $a\times10^{n}$, where $1\leqslant|a|\lt10$ and $n$ is an integer. The correct scientific - notation for 2.15 centimeters in meters is $2.15\times10^{-2}$ meters, not $215\times10^{3}$ meters as given in the original answer (which is incorrect).

Answer:

$2.15\times10^{-2}$ meters