When the rock is falling, how many forces are acting on the rock Air friction

The net force in the rock is Zero

Force of gravity and the air friction

None of the presented answer is correct

(edpuzzle btw incase anyones wondering)

gravity.

Explanation:

yes indeed gravity

I would say force of gravity and air friction

which three statements are true about all alloys?

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!