In which area of the galaxy would you find stars with fairly circular orbits about the galactic center?
a. central bulge
b. halo
c. corona
d. disk
e. galactic center
d
You might also like to view...
An electron in a hydrogen atom is in the n = 7 shell. How many possible values of the orbital quantum number l could it have?
A) 6 B) 7 C) 15 D) 33 E) 98
Two blocks of masses 20 kg and 8.0 kg are connected together by a light string and rest on a frictionless, level surface. Attached to the 8.0-kg mass is a second light string, which a person uses to pull both blocks horizontally. If the two-block system accelerates at 1.0 m/s2, what is the tension in the second string attached to the 8.0-kg mass?
a. 14 N c. 28 N b. 6.0 N d. 4.0 N
If the radiant energy from the sun comes in as a plane EM wave of intensity 1 340 W/m2, calculate the peak values of E and B
a. 300 V/m, 10-4 T b. 1 000 V/m, 3.35 × 10^-6 T c. 225 V/m, 1.60× 10-3 T d. 111 V/m, 3.00 × 10^-5 T e. 711 V/m, 2.37 × 10^-6 T
A drop in pressure is an indication of
A) an approaching cold front. B) orographic lifting. C) adiabatic expansion. D) a stationary front.