Consider the following statement, and explain whether or not it is sensible: NASA hopes to build a new telescope that will allow us to see some galaxies as they appeared 8 billion years ago

What will be an ideal response?


Sensible: By looking to a distance of 8 billion light-years, we can see objects as they looked 8 billion years ago.

Physics & Space Science

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Compton Scattering: A certain photon, after being scattered from a free electron that was at rest, moves at an angle of 120° with respect to the incident direction. If the wavelength of the incident photon is 0.591 nm, what is the wavelength of the scattered photon? (melectron = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s)

A. 0.380 nm B. 0 nm C. 0.550 nm D. 0.591 nm E. 0.595 nm

Physics & Space Science

Another name for quantum mechanics is ______________ mechanics

Fill in the blank(s) with correct word

Physics & Space Science

In general, a stream with a high discharge tends to have

A) increased laminar flow. B) increased turbulent flow. C) a high velocity. D) a narrow stream channel.

Physics & Space Science

"I live 20 minutes from Center City." How is this statement similar to giving astronomical distances in light-years?

What will be an ideal response?

Physics & Space Science