A screen is placed between two lamps so that they illuminate the screen equally, as shown in figure 16-7. The first lamps emits a luminous flux of 1445.0 lumens and is 2.5 m from the screen. what is the distance of the second lamp from the screen P is 2375.0 lm please show work

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

How do the kidneys affect homeostasis

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.