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1. A 6 N force and a 15 N force act on an object. The moment...

1. A 6 N force and a 15 N force act on an object. The moment arm of the 6 N force is 0.4 m. If the 15 N force provides 5 times the torque of the 6 N force, what is its moment arm?
2. What is the volume of a cube of gold having a mass of 80 kg? Which material will occupy a larger volume, 80 kg of gold, or 80 kg of Uranium? (Justify your choice)
3. Calculate the average density of the Mars using the Astronomical data listed on the inside back cover of your textbook.
4. Calculate the density and specific gravity of a 1290 kg chunk of material that is 0.15 m3 in volume. What is the most likely type of material of this chunk?
5. Calculate the buoyant force on a 0.2 cubic meter block of Aluminum immersed in Mercury.

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