Question

1) A ring weighing 9.45 g is placed in a graduated cylinder containing 25.3 mL of water. After the ring is added to the cylinder the water rises to 27.4 mL. What metal is the ring made out of? Assume the ring is a single metal.

2) Ollivander sells sheets of aluminum in a variety of thicknesses: 1.0 mm at 0.55 $/cm2, 2.0 mm at 0.70 $/cm2, and 3.0 mm at 0.85 $/cm2 and various thicknesses in between all following the same linear trend. Harry needs 10.0 cm2 of 2.2 mm thick aluminum. How much does this cost him? Express your answer in Dollars. Enter only a numerical value, do not enter units

Answer 1