The diagram shows two balls before they collide. 2 balls with grey arrows pointing to them from the outside. The left ball has below it m subscript 1 = 0.6 kilograms v subscript 1 = 0.5 meters per second. The right ball has below it m subscript 2 = 0.5 kilograms v subscript 2 = negative 0.2 meters per second.
What is the momentum of the system after the collision?

0.0 kg • m/s
0.2 kg • m/s
0.3 kg • m/s
0.4 kg • m/s

From “the raven” by edgar allan poe but the raven, sitting lonely on the placid bust, spoke only that one word, as if his soul in that one word he did outpour. nothing farther then he uttered—not a feather then he fluttered— till i scarcely more than muttered, “other friends have flown before— on the morrow he will leave me, as my hopes have flown before.” then the bird said, “nevermore.” in this excerpt, what is the speaker saying the raven will do? a. it will certainly die. b. it will leave immediately. c. it will leave the next day. d. it will befriend the speaker.

Read sentence 13 from the draft. some plants retain a great deal of their foliage through much of the spring and summer, but the leaves do not retain their green color for long. which detail would be best to add after sentence 13 to develop the topic? a. since the green color of the leaves that are bright and abundant during the warmer months will disappear by the time it is fall, it is important that the leaves are trimmed and kept freshly cut so that they will last for as long as possible. b. while the temperature outside may dictate when the fall colors of leaves appear, it is only one of many environmental factors that play a part in the changing of colors from green leaves to fall-colored leaves during the cooler months. c. if people want to enjoy the green color of leaves longer, trees should be planted where the environment is warmer and the days longer because chlorophyll in the leaves can only be manufactured and replaced with sunlight and warmth. d. the green chlorophyll normally masks the fall-colored pigments during the warmer months, but as sunlight becomes less abundant and trees become frozen, the fall colors of leaves become more visible as chlorophyll disappears.

Which of the following statements is true?