Final answer:
The weight of a 50 ft 2 1/2 in. hose filled with water cannot be calculated precisely without additional information about the weight per unit length of the hose, although physics principles can be used to estimate the water weight.
Step-by-step explanation:
The question of how much a charged 50 ft 2 1/2 in. hose weighs is not directly provided by the reference information. However, we can infer that this relates to the physical properties of materials and fluids in motion, which typically falls under the subject of physics. To estimate the weight of a water-filled hose, we need to know the weight of the water contained within the hose plus the weight of the hose itself. Water typically weighs about 62.4 pounds per cubic foot (pcf), so we could fill the hose volume with water and calculate the total weight.
Unfortunately, the exact weight cannot be calculated without additional specific information about the weight per unit length of the hose itself, which varies by construction materials and manufacturer. The reference to the force exerted by water exiting the hose relates to the momentum and force calculations in physics and highlights the significant impact a high-speed water flow can have once directed against a surface, but it does not directly answer the student's question.