In general, Globular clusters are ________ and ________ than open clusters
Fill in the blank(s) with correct word
older, redder, or bigger; less likely to be in the galactic plane
You might also like to view...
If the Universe is infinitely large, infinitely old, and expanding, the night sky should be bright. But in fact, it is not. What do we call this?
A. Olbers' paradox B. Grand Unified Theory C. the Neutrino Discrepancy D. the Cosmological Principle E. the Hubble Distance law
When NASA was communicating with astronauts on the Moon, the time from sending on the Earth to receiving on the Moon was 1.28 s. Find the distance from Earth to the Moon. (The speed of radio waves is 3.00 × 10^8 m/s.)
a. 240 000 km b. 384 000 km c. 480 000 km d. 768 000 km
A crate is sitting in the center of a flatbed truck. As the truck accelerates to the east, the crate moves with it, not sliding on the bed of the truck. In what direction is the friction force exerted by the bed of the truck on the crate?
1.to the west 2.to the east 3.There is no friction force, because the crate is not sliding.
A lens has a refractive power of -1.50. What is its focal length?
A. 150 cm B. -150 cm C. 67.0 cm D. -67.0 cm E. 8.50 cm