As a spaceship's velocity gets closer to the speed of light:
A) its length will increase and its clock will run more slowly.
B) its length will decrease and its clock will run faster.
C) its length will increase and its clock will run faster.
D) its length will decrease and its clock will run more slowly.
E) None of these will happen.
D
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How much time does it take a beam of light to travel 2.9 km through space? (c = 3.0 × 108 m/s)
A) 9.7 s B) 9.7 ms C) 9.7 ?s D) 9.7 ns E) 9.7 ps
What are the most common hydrogen compounds in the atmospheres of the jovian planets?
a. water (H2O), methane (CH4), ammonia (NH3) b. water and carbon dioxide (CO2) c. water and carbon monoxide (CO) d. sulfur dioxide (SO2) and propane (C3H8) e. none of the above
Answer the following statement(s) true (T) or false (F)
1. If I know a field’s curl at all points in space, I can calculate the field’s vectors at all points in space.
2. In a certain region of empty space, the z component of the magnetic field is changing with time. If we sum 
for a set of tiny steps 
around a closed loop in the xy plane, we will get a nonzero result.
3. In a certain region of empty space, the z component of the magnetic field is changing with time. If we sum 
for a set of tiny steps 
around a closed loop in the xy plane, we will get a nonzero result.
How do low mass stars transport newly formed elements into the interstellar medium?
A) stellar winds B) F supernova explosions C) formation of planetary nebula D) A and B E) A and C