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| 1. |
If a clock loses 5 seconds per day, what is the alteration required in the length of the pendulum in order that the clock keeps correct time? |
| A. | \(\frac{4}{{86400}}\) times its original length be shortened |
| B. | \(\frac{1}{{86400}}\) times its original length be shortened |
| C. | \(\frac{1}{{8640}}\) times its original length be shortened |
| D. | \(\frac{4}{{8640}}\) times its original length be shortened |
| Answer» D. \(\frac{4}{{8640}}\) times its original length be shortened | |