2 years ago

What city is located at the confluence of the ohio, allegheny, and monongahela rivers?.

1 answer:

3 0

(Pittsburgh city) is located at the confluence of the Allegheny and Monongahela rivers,

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sergejj [24]

Answer:

Energy of each photon is given by $0.0335\times 10^{-17}j$

Explanation:

We have given wavelength of light $\lambda =590nm=590\times 10^{-9}m$

Speed of light $c=3\times 10^8m/sec$

Plank's constant $h=6.6\times 10^{-34}j-s$

We know that energy of photon is given by $E=h\nu =\frac{hc}{\lambda }$

So energy is given by

$E=h\nu =\frac{hc}{\lambda }=\frac{6.6\times 10^{-34}\times 3\times 10^8}{590\times 10^{-9}}=0.0335\times 10^{-17}j$

8 0

3 years ago

babunello [35]

Answer: what u mean heres a river tho nile river also known as the nile, hope this helps you a little bit.

Explanation:

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3 years ago

Tomtit [17]

At least 7 billion people

6 0

3 years ago

Alex73 [517]

Answer:

From top to bottom: Midwest, West Coast, Southwest, Northwest.

Explanation:

Ur welcome :)

4 0

4 years ago

sweet-ann [11.9K]

I think the answer is D:all of the above.

3 0

3 years ago