Got a question ~ can someone help me out ? I want Explanation ~ [ cuz there's something I'm not clear about in this question ]

Thanks for Answering ~

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?

What happens to the vapor pressure of a substance when its surface area is increased at constant temperature?

The safe load, l, of a wooden beam of width w, height h, and length l, supported at both ends, varies directly as the product of the width and the square of the height, and inversely as the length. a wooden beam 4 inches wide, 9 inches high, and 240 inches long can hold a load of 6810 pounds. what load would a beam 3 inches wide, 8 inches high, and 144 inches long, of the same material, support? (round off your answer to the nearest integer.)