Edwin Hubble first found the distance to M31 in Andromeda with its ________ variable stars in its spiral arms

Fill in the blank(s) with correct word


Cepheid

Physics & Space Science

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Which one of the following is not a physical property of matter?

a. Specific heat b. Boiling point c. Density d. Flammability

Physics & Space Science

We now know that Newtonian physics is not valid [i.e., not correct] for

A) gases. B) very fast-moving objects. C) solid objects. D) stationary objects. E) Nonsense--Newtonian physics has never been found to be incorrect.

Physics & Space Science

An atom that has more protons than electrons is a ______________ ion

a. neutral b. positive c. negative d. polyatomic

Physics & Space Science

The circuit below contains three 100-W light bulbs and a capacitor. The emf ? = 110V. At the instant the switch S is closed, which light bulb is brightest?



a.
A

b.
B

c.
C

d.
A and B

e.
All three are equally bright.

Physics & Space Science