From the Steam Tables I get the following:
T v sub f d ( kg / m^3 ]
15.0 C 0.001001 m^3/ kg 999.0 kg / m^3
20.0 C 0.001002 m^3/ kg 998.0 kg/ m^3
25.0 C 0.001003 m^3 / kg 1001 kg / L^3
30.0 C 0 .001004 m^3 / kg 996.0 kg/m^3
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Search also NISTIR 6969, table 9.8 (it's free on internet) or a density calculator.
There are five significant figures in the number 0.0040090.
There are two significant figures: 2 and 0 The significant figures of a number are those digits that carry meaning contributing to its precision. Leading zeros (the zero before the 2) are not significant.
One - all nonzero digits are significant. Yes, but embeded 0s are also counted. 102 has 3 sig digs. Secondly, trailing 0s (0s on the right hand side of the number) are significant if they are an indication of the degree of accuracy, but not otherwise.
The density is is 1,26699 g/cm3.
The measurement 0.00450 has three significant figures. In scientific notation, the number is written as 4.50 x 10^-3, which clearly shows the three significant figures. The zeros before the 4 are not significant, as they are just placeholders.
there are 4
There are five significant figures in the number 0.0040090.
The number of digits in a measurement that you know with a certain degree of reliability is referred to as significant figures. Significant figures include all the known digits in a measurement plus one estimated digit, indicating the precision of the measurement. For example, if a measurement is recorded as 12.3, it has three significant figures, reflecting a reliable accuracy up to the tenths place. The more significant figures, the greater the confidence in the accuracy of the measurement.
There are two significant figures: 2 and 0 The significant figures of a number are those digits that carry meaning contributing to its precision. Leading zeros (the zero before the 2) are not significant.
Significant figures are the number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value.
The degree of accuracy of the measuring instrument.
The number of significant figures in a quantity represents the precision of the measurement. It indicates which digits are reliable and meaningful, reflecting the certainty of the measurement process. For example, in the number 0.00456, there are three significant figures, showing that the measurement is precise to that level. Therefore, significant figures help convey the degree of confidence in reported values in scientific and technical contexts.
3: assuming that the 0 at the right end is there to indicate the degree of precision.
4, assuming the 0 at the end is to indicate the degree of precision.
The measurement units and the degree of precision (significant figures or margin of error).
There would be five. The only time you do not count figures as significant is if they are zeroes behind a decimal, but before any other figure. Ex/ 0.000501 only has three significant figures, while 1.000501 has seven.
Significant figures are important because they indicate the degree of accuracy - the minimum amount by which a quantity is distinguished to be different from a similar amount.The more significant figures the more accurate the data will be.