If a microscope with a 5x power, and has objectives with powers of 10x and 50x, what is the total magnification of low power?

1 answer:

7 0

50x you must take the magnification of the ocular lens (5x) and multiply it by the magnification of the low power lens (10x).
5X10=50

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Sandra's target heart rate zone is 135bpm—172bpm. Marissa's target heart rate zone is 143bpm—176bpm. They stop playing basketbal

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<h2>Heart rate Zone</h2>

Explanation:

Sandra's target heart rate zone is 135bpm - 172bpm and Marissa's target heart rate zone is 143bpm - 176bpm.
Both count the heart rate zone is about 144 bpm and if they are stop playing basket ball it will decrease their heart rate zone by 20 bpm. So the total heart rate zone of both count is 144 - 20 bpm= 124 bpm.
It means that the heart rate zone (124 bpm) is less than both target heart rate zone of Sandra & Marissa
Hence, the right answer is "neither Sandra nor Marissa will be in THR zone"

<h2 />

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