The speed for a "low" circular orbit about the Earth is about
A) 1.7 × 104 km/s.
B) 7.6 km/s.
C) 2.1 km/s.
D) 2.5 × 104 km/s.
E) 17. km/s.
B
You might also like to view...
You are heating a jar full of hydrogen and observing its spectrum. If you add more hydrogen to the jar, the position of spectral lines will change.
Answer the following statement true (T) or false (F)
Which of the following best describes the modern definition of a constellation?
A) a region of the celestial sphere B) a pattern of bright stars in the sky C) a Greek mythological figure D) a collection of stars that are near one another in space E) a group of stars that all lie at about the same distance from Earth
A high-diver of mass 70.0 kg jumps off a board 10.0 m above the water. If, two seconds after entering the water, his downward motion is stopped, what average upward force did the water exert on him?
What will be an ideal response?
You are holding a finishing sander with your right hand. The sander has a flywheel which spins counterclockwise as seen from behind the handle. You are sanding a wall in front of you
As you turn the sander towards the right, you feel a tendency in the sander to A) turn towards the left. B) turn upward. C) turn downward. D) push toward you. E) pull away from you.