The mean diameters of mars and earth are 6.9x103 km and 1.3x104 km, respectively. the mass of mars is 0.11 times earth's mass. (a) what is the ratio of the mean density (mass per unit volume) of mars to that of earth? (b) what is the value of the gravitational acceleration on mars? (c) what is the escape speed on mars?

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.