Asteroid 433 Eros is one of the largest near-Earth asteroids. For purposes of this problem, assume it is spherical. The value of g at its surface is 0.00600 m/s2 and the escape velocity is only 9.95 m/s. What is the radius of Eros?
A) 8250 m
B) 16,000 m
C) 1600 m
D) 800 m
E) 400 m
A
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Capacitors in Combination: A 2.0-?F capacitor and a 4.0-?F capacitor are connected in series across an 8.0-V potential source. What is the charge on the 2.0-?F capacitor?
A. 2.0 ?C B. 4.0 ?C C. 12 ?C D. 11 ?C E. 25 ?C
Approximately how long does energy take to travel from the core to the surface of the Sun?
A. 10 billion years B. 16 million years C. a few seconds D. a few minutes E. a thousand years
Helium is more abundant on Saturn than on Jupiter
Indicate whether the statement is true or false
Consider a situation where a skater pulls her arms inward, causing her rotation rate to speed up. Linear momentum
a. is definitely conserved b. is definitely not conserved c. may or may not be conserved d. none of the above