Between us and the Galactic Center, the Milky Way has a mass of:
A) several hundred thousand suns.
B) one to two million suns.
C) 250 million suns.
D) 100 billion suns.
E) over a trillion suns.
D
You might also like to view...
In a section of horizontal pipe with a diameter of 3.00 cm the pressure is 5.21 kPa and water is flowing with a speed of 1.50 m/s. The pipe narrows to 2.50 cm. What is the pressure in the narrower region?
A) 4.00 kPa B) 7.50 kPa C) 5.82 kPa D) 6.42 kPa E) 4.61 kPa
What is a Starburst Galaxy?
A.) A galaxy whose spiral arms have been stretched out into a star-like shape. B.) A galaxy with a supermassive black hole at the center. C.) A galaxy with a very high rate of star formation. D.) A galaxy with multiple supernovae. E.) A galaxy with a lot of gamma-ray emission.
Significant amounts of liquid water last existed on the surface of Mars during the
A) Noachian Era B) Amazonian Era C) Hadean Era D) Hesperian Era
A helium nucleus (charge = 2e, mass = 6.63 × 10^-27 kg) traveling at 6.20 × 10^5 m/s enters an electric field, traveling from point A, at a potential of 1.50 × 10^3 V, to point B, at 4.00 × 10^3 V. What is its speed at point B?
1.7.91 × 10^5 m/s 2.3.78 × 10^5 m/s 3.2.13 × 10^5 m/s 4.2.52 × 10^6 m/s 5.3.01 × 10^8 m/s