Gamma rays are

A) made up of helium nuclei.
B) made up of electrons.
C) a form of beta radiation.
D) rays of light.
E) a form of electromagnetic radiation.


E

Physics & Space Science

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Satellite Motion: Satellite A has twice the mass of satellite B, and moves at the same orbital distance from Earth as satellite B. Compare the speeds of the two satellites.

A. The speed of B is twice the speed of A. B. The speed of B is one-half the speed of A. C. The speed of B is one-fourth the speed of A. D. The speed of B is equal to the speed of A. E. The speed of B is four times the speed of A.

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Unlike the ultraviolet photons originally emitted by the embedded stars of an emission nebula, the photons emitted by the recombination of electrons with atoms:

A) do not escape the nebula. B) escape the nebula. C) are re-absorbed by neutral hydrogen atoms. D) bounce around inside the nebula. E) are scattered by the dust particles.

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According to the diathesis-stress model, ...

What will be an ideal response?

Physics & Space Science