how long should it take the voices of astronauts on the moon to reach the earth? assume that the only significant time is the transit time from the earth to the moon, at the speed of light. suppose that the astronaut on the surface of the moon, the receiver on the surface of the earth, and the centers of the earth and the moon are aligned. the distance between the centers of the earth and the moon is 384×103km, the radius of the earth is 6.38×103km, the radius of the moon is 1.74×103km.

Give the examples of monera. no wrong answer. don't answer of you don't know.

The vegetation that thrives in the tundra is limited to a. mosses, barley, wheat, and corn. b. coniferous trees. c. dwarf shrubs, mosses, lichen, potatoes, and beans. d. mosses, lichen, algae, and dwarf shrubs.

Ineed this answered asap the north korean communist government a. controls crop production and distribution. b. is not involved in crop production and distribution. c. exports its huge rice surplus to other countries. d. allows farmers to choose which crops to grow but controls where the crops are sold. which statement below is true? a. east asian nations are members of nafta. c. industry and production is not an important aspect of east asian economics. b. east asian nations are economically independent. d. the economies of most east asian countries are mixed or market systems. what is the main idea of this passage? a. the city of hiroshima can never fully recover from the atomic bombing of 1945. b. hiroshima is more modernized than any other city in japan. c. after being bombed, hiroshima was rebuilt and became a thriving urban port. d. the city of hiroshima has an extensive park system dedicated to peace.