Which portion of the electromagnetic spectrum is used to identify fluorescent minerals?

a. ultraviolet light
b. X rays
c. infrared waves
d. gamma rays


Ans: a. ultraviolet light

Physics & Space Science

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Which of the following locations has the smallest (in magnitude) magnetic declination?

a. Washington state b. the South Carolina – Georgia border c. the San Francisco – Oakland area d. western Colorado

Physics & Space Science

You could swallow a capsule of germanium, Ge (atomic number 32), without significant ill effects. If a proton were added to each germanium nucleus, however, you would not want to swallow the capsule because the germanium would

A) become arsenic. B) become radioactive. C) expand and likely lodge in your throat. D) have a change in flavor.

Physics & Space Science

If the voltage across the ends of a wire increases, the current in the wire __________

Fill in the blank(s) with correct word

Physics & Space Science

The temperature variations of the cosmic microwave background observed by Planck agrees well with our model predictions. This provides persuasive evidence in favor of what?

A) both the Big Bang and inflation B) only the Big Bang, but not inflation C) not the Big Bang, but inflation D) neither the Big Bang nor inflation

Physics & Space Science