The observable universe consists of galaxies and other matter that can, principally, be seen from Earth because the light signals have had time to reach us. Not everything in the sky is the way it is when we see it, because of the distance the light travels to reach us.
Hope this helps :)
Answer
a) For the rock






b)
for maximum range




c) The value of θ is the same on every planet as g divides out.
Answer:
I would go with 2
Explanation:
But i would also not go with my answer. Lol