To solve this problem we will use the definition of the kinematic equations of centrifugal motion, using the constants of the gravitational acceleration of the moon and the radius of this star.
Centrifugal acceleration is determined by

Where,
v = Velocity
r = Radius
From the given data of the moon we know that gravity there is equivalent to

While the radius of the moon is given by

If we rearrange the function to find the speed we will have to



The speed for this to happen is 1.7km/s
"Blue, Indigo and violet are strongly bent that mostly skim through the upper atmosphere making the sky appear blue "The sky is blue in the noon time because of the light is refracted during this period. We appreciate your questions. Please, never hesitate to ask more in Brainly your queries.
Answer is C. when protons are equal to electrons their charges cancel out making it neutral because electrons have a charge of negative one and when you combine them positive 1 and negative 1 is 0.