Question

1. A standard 1 kilogram weight is a cylinder 54.0 mm in height and 41.0 mm in diameter. What is the density of the material?

______kg/m³

^2. Two spheres are cut from a certain uniform rock. One has radius 4.70 cm. The mass of the other is eight times greater. Find its radius.

______ cm

3. A solid piece of lead has a mass of 29.22 g and a volume of 2.59 cm³. From these data, calculate the density of lead in SI units (kilograms per cubic meter).

_____ kg/m³

^4.  Assume it takes 8.00 min to fill a 35.0-gal gasoline tank. (1 U.S. gal = 231 in.³)

(a) Calculate the rate at which the tank is filled in gallons per second.

________ gal/s

(b) Calculate the rate at which the tank is filled in cubic meters per second.

________ m³/s

(c) Determine the time interval, in hours, required to fill a 1.00-m³ volume at the same rate. (1 U.S. gal = 231 in.³)

________ h

Answer 1