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N76 [4]
3 years ago
14

1

Mathematics
1 answer:
NikAS [45]3 years ago
5 0

9514 1404 393

Answer:

  1.0 N

Step-by-step explanation:

When the length increases by the factor 120/80 = 3/2, the force required is multiplied by the inverse of this: 2/3.

The required force is ...

  (2/3)(1.5 N) = 1.0 N

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2 years ago
The life of a semiconductor laser at a constant power is normally distributed with a mean of 7,000 hours and a standard deviatio
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This question not incomplete

Complete Question

The life of a semiconductor laser at a constant power is normally distributed with a mean of 7,000 hours and a standard deviation of 600 hours. If three lasers are used in a product and they are assumed to fail independently, the probability that all three are still operating after 7,000 hours is closest to? Assuming percentile = 95%

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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