1 year ago

What are some common positive and negative attitudes toward physical activities? What

1 answer:

4 0

the common attributes are positive and negatively charged

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Papessa [141]

Answer:

$\mathbf{\dfrac{\sigma_{mat}}{L} = 3.6 \ ns/ km}$

Explanation:

From the given information, the LED is operating with a given wavelength of 850 nm or 0.85 μm.

Hence, the material dispersion is $\dfrac {d \tau _{mat}}{d \lambda } \simeq (80 \ ps / (nm.km) \ )$

Now, using the pulse spread formula:

$\dfrac{\sigma_{mat}}{L} = \dfrac{d \tau _{mat} }{d \lambda} \sigma \lambda$

$\dfrac{\sigma_{mat}}{L} = (80 \ ps/ ( m.km) \ ) \times (45 \ nm)$

Thus, the pulse spreading as a result of material dispersion is: $\mathbf{\dfrac{\sigma_{mat}}{L} = 3.6 \ ns/ km}$

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2 years ago

ss7ja [257]

B Ik it all just know who they’ll you

8 0

2 years ago

omeli [17]

Answer:

8 mph

Explanation:

4 miles in half hour so you add 4 more for the second half

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2 years ago

alexgriva [62]

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3 years ago

yKpoI14uk [10]

The answer is 100mm/s. I hope this helps :)

7 0

3 years ago