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| Symbol: | Hz |
| Category: | Frequency |
| SI Equivalent: | 1 /s |
| Dimension: | T-1 |
| System: | SI |
| Notes | |
| Named after the German physicist Heinrich (Rudolf) Hertz, the hertz is the frequency of a periodic phenomenon with 1 period per second. | |
| Frequency | ||
| Symbol | Unit Name | |
| 1 | cps | cycles per second |
| Radioactivity | ||
| Symbol | Unit Name | |
| 1 | Bq | becquerel |
| 2.7027×10-11 | Ci | curie |
| 1×10-9 | GBq | gigabecquerel |
| 1×10-6 | MBq | megabecquerel |
| 2.7027×10-8 | mCi | millicurie |
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