Cosmology is the study of the overall structure and evolution of
A) the universe.
B) stars.
C) beauty.
D) galaxies.
Question 2
Fire a cannonball from a cannon and it curves due to gravity. Shine a light from a flashlight and it
A) curves per second the same as the cannonball.
B) follows a straight-line path with no curvature at all.
C) curves half as much as the cannonball.
D) curves slightly, but not as much per second as the cannonball.
Question 3
In a 1-g gravitational field, in 1 s, a light beam will curve beneath a perfectly straight line by
A) much less than 4.9 m.
B) about 4.9 m.
C) much more than 4.9 m.
Convergent evolution for coloration
Pulsars are highly magnetized, rotating neutron stars that emit a beam of electromagnetic radiation.
The a helix, a common secondary structure in proteins
Family structure is a vital aspect in the socialization of children.
Structure of a clathrin-coated pit
Age structure for three countries