Typical asteroids are irregularly shaped. Why is Ceres not so shaped?
A. Ceres is near the Sun; the Sun's heat melted Ceres, and it solidified into a sphere.
B. Ceres is relatively massive; its gravitational force is strong enough to crush its material into a sphere.
C. Ceres is near Earth; it was shaped into a sphere by Earth's gravitational force.
D. Ceres is shaped like all the other asteroids.
Answer: B
You might also like to view...
A pn-junction diode at 300 K produces a current density 1.00×104 A/m2 , with a forward bias of 0.10 V. Calculate the current density for a forward bias of 0.300 V.
What will be an ideal response?
Which of the following phenomena are not thought to be results of collisions or other interactions between galaxies?
A) the fact that spiral galaxies have both disk and halo components B) the fact that elliptical galaxies are more common in clusters of galaxies than outside clusters C) starbursts D) the presence of very large, central dominant galaxies in clusters of galaxies
Magnetic field lines come out of the south pole of a magnet and enter at the north pole
Indicate whether the statement is true or false
A certain substance has a half-life of 5.0 hours. How many nuclei of the substance are required to give an initial activity of 6.0 ?Ci? 1 Ci = 3.7 × 1010 Bq
A) 5.8 × 109 nuclei B) 8.5 × 108 nuclei C) 6.3 × 108 nuclei D) 3.2 × 109 nuclei E) 2.4 × 109 nuclei