transistors are an essential part of many electronic devices. the length of a specific transistor is…

transistors are an essential part of many electronic devices. the length of a specific transistor is approximately 7 nanometers. this is equal to 7 × 10⁻⁹ meters. what is 7 × 10⁻⁹ written in standard form? type the number in the box.

transistors are an essential part of many electronic devices. the length of a specific transistor is approximately 7 nanometers. this is equal to 7 × 10⁻⁹ meters. what is 7 × 10⁻⁹ written in standard form? type the number in the box.

Answer

Explanation:

Step1: Recall negative - exponent rule

A number in scientific notation $a\times10^{-n}$ ($1\leq a<10$, $n$ is a positive integer) can be written in standard form by moving the decimal point $n$ places to the left. Here $a = 7$ and $n=9$.

Step2: Move the decimal point

Starting with 7, we move the decimal point 9 places to the left. We add 8 zeros before 7. So $7\times10^{-9}=0.000000007$.

Answer:

$0.000000007$