Because the moon rotates once for each revolution around earth,
choose one answer.
a. you see some phases more than others.
b. a different side of the moon faces earth each day.
c. you never see the far side of the moon.

After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.

Aballet student who learns with the of his instructor is demonstrating learning.

Which statement correctly describes the relationship between frequency and wavelength?