Explain why the open umbrella hit the ground after the closed umbrella.

The open umbrella WILL NOT hit the ground first, the closed one will.

Explanation:

I know this because an open umbrella has more surface area and thus more room for air particles to collide with it and slow it down.

Explanation:

The opened umbrella hit the ground after the closed one because the air made the open umbrella like a parachute so the open umbrella "floated" to the ground rather than falling.

answer; /// the only one thats make little sense is (c) fair credit billing act;

industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations.