The video shows a collapsing cloud of interstellar gas, which is held together by the mutual gravitational attraction of all the atoms and molecules that make up the cloud. as the cloud collapses, the overall force of gravity draws the cloud inward because 1) gradually becomes stronger(blank 1) gradually becomes weaker(blank 1) stays constant at all times(blank 2) the strength of gravity follows an inverse square law with distance(blank 2) the mass of the cloud increases as it collapses(blank 2) the total gravitational force is a conserved quantity

(Blank 1) gradually becomes stronger

(Blank 2) the strength of gravity follows an inverse square law with distance

Explanation:

Newton's law of universal gravitation tells us that , which means that the gravitational force between two masses and increases as the distance between them decreases following an inverse square law. The fact that the cloud of interstellar gas collapses means that its particles get closer and closer, thus making the overall force of gravity stronger and stronger.

We can also easily see that the options "the mass of the cloud increases as it collapses" and "the total gravitational force is a conserved quantity" are wrong, the first one because we can assume under these conditions that the mass is conserved, and the last one because, as we saw, the gravitational force varies according to Newton's law of universal gravitation, thus it cannot be a conserved quantity.

c because the news are a source of information of things that happen on the daily and shows evidence about that particular topic

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.