Two 100-kg astronauts are floating in space. The first astronaut is moving at 4 m/s while the second is at rest. The astronauts collide. Both
are now moving at 2 m/s. What is the total momentum of the system.

400 kg m/s
800 kg m/s
200 kg m/s
600 kg m/s

400

Explanation:

can you help me with my question The surface of the Gilded Age was of great prosperity, while the interior was corrupt; the "gilding" or good exterior of the Gilded Age came from which of the following? A. Rebuilding the nation from the left over money from the War B. The technological advancements of the industrial revolution C. The mass movement of people from the country into the cities D. New monuments and buildings built in honor of the war heroes

i think the answer is tomato juice? not entirely sure though