Question

17 which of the following is the same thing as a hertz (hz)? * (0.5 points) j m/s nm 1/s

Explanation:

Step1: Recall definition of hertz

Hertz is the SI unit of frequency, defined as the number of occurrences of a repeating event per second.

Step2: Analyze each option

• J is the unit of energy (joule).
• $\frac{m}{s}$ is the unit of speed (meters per second).
• nm is the unit of length (nanometer).
• $\frac{1}{s}$ represents per - second, which is equivalent to hertz as frequency is events per second.

Answer:

$\frac{1}{s}$