Suppose a 5.0-meter diameter telescope were constructed on the dark side of the moon. The viewing there (except for brief periods of sunlight) would be excellent. As an example, what would be the separation between two objects that could just be resolved on the planet Mars in 500 nm light? [The distance to Mars at closest approach is 50 million miles.]
9.8 km which equals 6.1 miles
You might also like to view...
According to Aristotle, which of these is a "natural" or "unforced" motion?
A) A book coming to rest as it slides along the floor. B) A stone falling straight downward. C) Both of the above. D) Neither of the above.
What is the angular speed, in rad/s, of a flywheel turning at 813.0 rpm?
A) 85.14 rad/s B) 13.53 rad/s C) 63.84 rad/s D) 95.33 rad/s
A 5.00 kg mass is located at (2.00 m, 0.00 m, 3.00 m) and a 2.00 kg mass is located at (0.00 m, 4.00 m, –2.00 m). The center of gravity of the system of masses is
A. (10/7m, 8/7m, 11/7m). B. (11/7m, 7/7m, 8/7m). C. (7/7m, 10/7m, 11/7m). D. (10/7m, 7/7m, 8/7m). E. (8/7m, 7/7m, 10/7m).
The coefficient of friction between a racecar's wheels and the track is 1.0 . The car starts from rest and accelerates at a constant rate for 300 m. Find the maximum speed at the end of the race
a. 44 m/s c. 89 m/s b. 77 m/s d. 99 m/s