Answer to Question #204737 in English for hangwy

Question

Consider the project to put a man on the moon. President John F. Kennedy on May 25, 1961 stated; “I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him back safely to the earth.” Using the Triple Constraint concept, isolate the 3 constraints contained in Kennedy’s statement and weight them (Driver, Middle, and Weak). (10)

Answer 1

In total, 59% of the Moon's surface is visible from Earth at one time or another. Practical observation of the parts of the other side of the Moon occasionally visible from Earth is challenging because of the low viewing angle from Earth.