Ascreen is placed between two lamps so that they illuminate the screen equally. the first lamp emits a luminous flux of 1375 lm and is 5 m from the screen. what is the distance of the second lamp from the screen if the luminous flux is 2167 lm? answer in units of m.

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