Density is a derived quantity that expresses the mass per unit volume of an object. A certain object has a density of 15.4 g/cm^3. What is this value in kilograms per cubic meter(kg/m^3)?
Answers
It is often necessary to convert from one unit to another. For example, if you are reading a European cookbook, some quantities may be expressed in units of liters and you need to convert them to cups. Or perhaps you are reading walking directions from one location to another and you are interested in how many miles you will be walking. In this case, you may need to convert units of feet or meters to miles.
Let’s consider a simple example of how to convert units. Suppose we want to convert 80 m to kilometers. The first thing to do is to list the units you have and the units to which you want to convert. In this case, we have units in meters and we want to convert to kilometers. Next, we need to determine a conversion factor relating meters to kilometers. A conversion factor is a ratio that expresses how many of one unit are equal to another unit. For example, there are 12 in. in 1 ft, 1609 m in 1 mi, 100 cm in 1 m, 60 s in 1 min, and so on. Refer to Appendix B for a more complete list of conversion factors. In this case, we know that there are 1000 m in 1 km. Now we can set up our unit conversion. We write the units we have and then multiply them by the conversion factor so the units cancel out, as shown:
\[80\,\overline{)\text{m}}\,×\,\frac{1\,\text{km}}{1000\,\overline{)\text{m}}}=0.080\,\text{km}.\]
is it wrong answer
Answer:
d =m/v
15.4 g on changing kg become 0.0154×1m(1000) = 0.0154kg/m3