2. A cube-shaped sandbox has edges that are 2.25 ft long. The sandbox is filled with dry sand that has a density of 101.82 Ib/f^3. (a) Is it safe to place the sandbox on a table that can support a maximum weight of 1200 Ibs? Explain why or why not. (b) Would the density of the sand change if the sandbox was only half full? Explain. Answer:3. It is Keke's birthday, and her parents surprise her with a room full of balloons. Use the Fermi procesS to estimate the number of balloons needed to fill Keke's living room. Assume the living room is a rectangular prism with a length of 30 feet, a width of 45 feet, and a height of 11 feet. Assume the balloons are spheres with a radius of 0.45 feet. Show your work. Answer:

2. A cube-shaped sandbox has edges that are 2.25 ft long. The sandbox is filled with dry sand that has a density of 101.82 1b/fts. (a) Is it safe to place the sandbox on a table that can support a maximum weight of 1200 lbs? Explain why or why not. (b) Would the density of the sand change if the sandbox was only half full? Explain. Answer: 3. It is Keke's birthday, and her parents want to surprise her with a room full of balloons. Use the Fermi process to estimate the number of balloons needed to fill Keke's living room. Assume the living room is a rectangular prism with a length of 30 feet, a width of 45 feet, and a height of 11 feet. Assume the balloons are spheres with a radius of 0.45 feet. Show your work.