Meteoric material dates the formation of the solar system at about ________ billion years
A) 1.5 B) 2.0 C) 2.5 D) 4.6 E) 10
D
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Gravitational Potential Energy: You and your friend, who weighs the same as you, want to go to the top of the Eiffel Tower. Your friend takes the elevator straight up. You decide to walk up the spiral stairway, taking longer to do so. Compare the gravitational potential energy of you and your friend, after you both reach the top.
A. It is impossible to tell, since the times you both took are unknown. B. It is impossible to tell, since the distances you both traveled are unknown. C. Your friend's gravitational potential energy is greater than yours, because he got to the top faster. D. Both of you have the same amount of gravitational potential energy at the top. E. Your gravitational potential energy is greater than that of your friend, because you traveled a greater distance in getting to the top.
What would happen if a small piece (say the size of a paper clip) of neutron star material struck Earth?
What will be an ideal response?
Ekapluto is an unknown planet that has two moons in circular orbits. The table summarizes the hypothetical data about the moons
Mass Radius Orbital Radius Orbital period Moon A 4.0 × 1020 kg 2.0 × 108 m 4.0 × 106 s Moon B 1.5 × 1020 kg 2.0 × 105 m 3.0 × 108 m The orbital period of Moon B is closest to A) 5.6 × 106 s. B) 6.0 × 106 s. C) 6.4 × 106 s. D) 6.9 × 106 s. E) 7.3 × 106 s.
The shallowly submerged areas that border the continental landmasses are called the ______________
Fill in the blank(s) with correct word