The mass of the Milky Way galaxy is a few ____
a. million solar masses
b. hundreds of millions of solar masses
c. billion solar masses
d. hundreds of billions of solar masses
e. trillion solar masses
d
You might also like to view...
What temperature exists inside a solar collector (effective collection area of 15 m2 ) on a bright sunny day when the outside temperature is +20.°C?
Assume that the collector is thermally insulated, that the sun irradiates the collector with a power per unit area of 600 W/m2, and that the collector acts as a perfect black body. A) 107°C B) 154°C C) 93°C D) 73°C E) 33°C
What is the threshold energy for production of a pair of muons, each of mass 207 mo?
What will be an ideal response?
A particle is in the second excited state of a one-dimensional box of length 1.0 m. What is its momentum (in kg × m/s)?
a. 6.6 × 10^-34 b. 3.3 × 10^-34 c. 9.9 × 10^-34 d. 13 × 10^-34 e. cannot be solved unless mass of particle is known
A place where an unusually hot part of the mantle rises through the crust causing volcanic activity is called
A. Divergent boundary B. Hot spot C. Convergent boundary D. Transform boundary