Grass grows densely everywhere on a 0.300 acre plot of land. What is the approximate number of blades of grass on this plot of land? Suppose each blade occupies 1/10 in2 of area. (1 acre = 43 560 ft2.)

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 floor area of the room in square meters.

The base of a pyramid covers an area of 12.8 acres (1 acre = 43,560 ft²) and has a height of 471 ft. If the volume of a pyramid is given by the expression V = bh/3, where b is the area of the base and h is the height, find the volume of this pyramid in cubic meters. m³ ⒸSylvain Grandadam/Photo Researchers, Inc.

Acre-feet (af) is a unit that some non-scientists unwisely use to measure volume of liquids. By definition 1 acre foot is one foot multiplied by 1 acre. 1 acre is equal to about 4 × 104 ft2 . 1. How many cubic feet are in an acre-foot?

If the walls in a room are 80.2 m2 in area and a gallon of paint covers 15.0 square yards, how many gallons of paint are needed to paint the room? The following equalities should prove useful: 1 inch = 2.54 cm, 1 foot2 = 144 inch2, 3 ft = 1 yard.

Bacteria and other prokaryotes are found deep underground, in water, and in the air. One micron (10-6 m) is a typical length scale associated with these microbes. (a) Estimate the total number of bacteria and other prokaryotes onthe Earth. (b) Estimate the total mass of all such microbes.

- Your answer is partially correct. A partly-full paint can has 0.515 U.S. gallons of paint left in it. (a) What is the volume of the paint, in cubic meters? (b) If all the remaining paint is used to coat a wall evenly (wall area = 12.1 m²), how thick is the layer of wet paint? Give your answer in meters. (a) Number i 1.949 (b) Number i 312.1 Units Units m^3 m^2

One gallon of paint (volume = 3.78 × 10-³m³) covers an area of 25.0m². What is the thickness of the fresh paint on the wall?

(a) A pyramid has a height of 465 ft and its base covers an area of 12.0 acres (see figure below). The volume of a pyramid is given by the expression V = 1 3 -Bh, where B is the area of the base and h is the height. Find the volume of this pyramid in cubic meters. (1 acre = 43,560 ft²) 2294276.22 m³ (b) What If? If the height of the pyramid were increased to 520 ft and the height to base area ratio of the pyramid were kept constant, by what percentage would the volume of the pyramid increase? 99.95 X %

A right circular cylinder has a diameter of 1.1 in and a height of 8 ft. (a) What is the volume of the cylinder in cubic feet? .................... ft3(b) What is the volume in cubic meters? ................. m3(c) What is the volume in liters? ........................ L