barb and Nancy start out 5 meters apart. Nancy is walking 1 m/sec in the direction indicated. what is barb's rate at the instant that Nancy has walked 4 meters, while they have remained 5 meters apart?​

The roman empire fell around the 5th century, and as islam spread in the 7th century, trade between europe and china slowed. chinese traders were blocked from westward expansion into europe when the chinese army was defeated by muslim fighters in the area known as syr darya. the trade routes, known as the silk road, fell into disuse, and trade between the far east and europe nearly stopped. it wasn't until the 13th century when the mongols invaded and controlled central asia and large parts of the middle east that extensive trade along these routes was opened again. based upon the paragraph above and your knowledge of the mongols, which of the following statements is correct? a. the mongols unified regions along the silk road, allowing for safe transport of goods. b. muslims controlled busy trade routes into china from the 5th to the 7th centuries. c. without access to european markets, the chinese were unable to obtain raw materials. d. the mongols replaced the roman empire as the dominant force in western europe.

Want brainliest + free points? answer this question correctly and i got you. in rural areas, be aware of sudden hazards, particularly near a. wide turns or working farms b. tight turns or working farms c. long stretches of open road d. abandoned farms

What would be the problems if the constitution had limited the position of justice to 10 years? why?me , idc if you don’t have the accurate answer , just tell me your guess