A piece has mass of 57.41 g and volume of 3.62 cm3. The density of the piece in kilogram per cubic meter is: 1.585 x 103 kg/m3 15.85 kg/m3 1.585 x 104 kg/m3 Od. 1.585 x 102 kg/m3

The length and width of a rectangular room are measured to be 3.885 ± 0.0065 m and 3.2 ± 0.0045 m. In this problem you can approximate the error on a product or quotient of quantities by the sum of the percent error on each quantity.Calculate the uncertainty in this measurement in square meters.

A mass of 39g is placed on the end of a 4.1cm vertical spring. This causes the spring to extend to 8.4cm. If we then change the mass to 263g, what is the measured length of the spring (in m)?

One mole of Gold (Au) atom has a mass of 197 g. We know that the density of gold is 19.30 g/cm3 in room temperature. Using those numbers, answer the following questions: a) What is the mass of a single gold atom in kg? b) Assume that gold atoms sit in a perfect cubic crystal structure. Estimate the distance between two gold atoms in meters.   c) If we have a gold cube of 6 cm on each side, how many atoms can we fit along the edge of each side of the cube?  d) What would be the mass, in kilograms, of the gold cube we discussed in part (c) (measuring 6 cm on each side)?