- 11 When A Cube Shaped Object With Mass 356 Kg Is Supported Fully Underwater By A Lifting Cable The Tension In The Cabl 1 (105.29 KiB) Viewed 41 times
11. When a cube shaped object with mass 356 kg is supported fully underwater by a lifting cable, the tension in the cable is Tair = 3097 N. Calculate A) the density of the object, B) the volume of the object and C) based on the information above, what is your best guess about the material the object is made of? 12. You would like to build a raft using a solid block of wood. If the area of the raft is 1.2 m x 3 m, what minimum thickness would the raft have to be in order to support an additional 800 N (180 lb) payload? Assume that the density of the wood is 720 kg/m³. 13. You have an ultra-precision balance scale with a 1 pound (4.448 N) solid gold cube on one side, balanced by a 1 pound cube of Aluminum on the other. After perfectly balancing the scale, you put a large glass cover (called a bell jar) over the scale and suck out all of the air with a vacuum pump, leaving essentially 0 psi of air pressure inside the bell jar. The question is will the Aluminum side A) Rise, B) Lower or C) Stay in the same position? Explain your answer in detail (words, equations....whatever you think is adequate). GOLD ALUMINUM 14. You want to make a barometer that is filled with maple syrup that has a density of 1333 kg/m³. Calculate the minimum height of this barometer A) in meters and B) in feet.