The formula for the surface area of a sphere is: Example (a) The radius of the following sphere is 28 cm. What is its surface area? (b) A ball has a surface area of approximately 9900 cm2. What is its radius? (c) The earth’s radius is 6370km. ...
Then, 20 μL cold DAPI was added to the samples and kept at room temperature in the dark for 10–15 min. Each sample (2 μL) was placed on a microscope slide in 10 rectangular areas (2 mm × 3 mm). The total number of spermatozoa was counted using the formula:Sperminreproductive...
This allows for the reduction of conventional reinforcement in such elements. Due to the high residual tensile strength (fFtu) of fibre-reinforced concrete, the analysed SFRWSC does not require minimum reinforcement in the form of stirrups, as indicated by the following formula:...