65. If Jill was traveling at 300 miles in 4 hours due South what was his velocity in miles per second, a) 75 miles per hour due south
c) 5 miles per second due south
b) .02 miles per second due south d) 1 mile per hour due south

Isobars are lines of constant or equal pressure on a weather map. they can be used to find areas of low or high pressure over a broad area, and they can tell us how intense the system may be. on weather maps, you may have noticed areas that have a large l or h over a region with lines circling around them. the l stands for low pressure and h stands for high pressure. the lines circling them are isobars. check out the pressure system and isobars over georgia and florida. what is the present weather in this area ? a) clear and sunny b) cold and cloudy c) changing weather d) lots of precipitation