which of these time measurements is the smallest?\n0.02 seconds\n0.02 teraseconds\n2,500 milliseconds\n25,000…

Explanation:

Step1: Convert all to seconds

1 terasecond = $10^{12}$ seconds, so 0.02 teraseconds = $0.02\times10^{12}=2\times10^{10}$ seconds. 1 millisecond = $10^{- 3}$ seconds, so 2500 milliseconds = $2500\times10^{-3}=2.5$ seconds. 1 nanosecond = $10^{-9}$ seconds, so 25000 nanoseconds = $25000\times10^{-9}=2.5\times10^{-5}$ seconds. The first - given value is 0.02 seconds.

Step2: Compare the values

We have 0.02 seconds, $2\times10^{10}$ seconds, 2.5 seconds, and $2.5\times10^{-5}$ seconds. Comparing these values: $2.5\times10^{-5}<0.02 < 2.5<2\times10^{10}$.

Answer:

25,000 nanoseconds