解析 B。本题考查体积单位的表达。A 选项“cubic meters”是立方米,通常用于较大的空间体积;C 选项“grams”是克,是重量单位;D 选项“kilometers”是千米,是长度单位。只有 B 选项“liters”是升,可用于表示容器的容量等体积相关的表达。反馈 收藏
Calculate the volume of a 3.400 kg solid with a density of 10.74 g/ml. The weight of a sphere is proportional to its radius cubed. If a sphere of diameter 2 cm has a mass of 5 grams, what diameter sphere has a mass of 1080 grams? The weight of a spher...
Density represents the numerical ratio between a substance's mass and the volume of space it occupies. Scientists normally express density in units of grams per milliliter (g/mL) or grams per cubic centimeter (g/cc). Gaseous CO2 Under "standard" conditions of 0 degrees Celsius and 1 atmosphe...
Density is a parameter that is expressed as the mass of the substance or compound over the volume of it. Knowing the density can help to predict the volume or the mass of a substance.Answer and Explanation: In order to determine the volume of a piece of Nickel, we need to ...
The density of a substance is not fixed. It actually depends on the temperature and pressure. For example, the volume of overhead wires change in summer as they expand and thus having a different volume.Answer and Explanation: Become a member and unlock all Study Answers Start today. ...
A score of78 on a military drug testis meaningless without knowing the specific testing method, the substance being tested for, and the unit of measurement.Drug tests in the military use specific cutoff levels measured in nanograms per milliliter (ng/mL) to determine a positive or negative res...
As discussed by Jones, the higher cost largely depends on the unit of analysis since foods with low energy density seem more expensive when the unit of analysis is the cost per 100 kcal, whereas the cost per weight will reflect the contrary [43]. Moreover, similar to other studies [12,...
You should not overtreat hypoglycemia by eating too many carbs, as doing so can triggerhyperglycemia(high blood sugar). Hyperglycemia could require diabetes medications to bring your blood sugar back under control. A good strategy is to follow the "15-15 Rule," which means eating 15 grams of...
It is currently unclear as to whether sex hormones are significantly affected by soy or whey protein consumption. Additionally, estrogenic signaling may be potentiated via soy protein supplementation due to the presence of phytoestrogenic isoflavones. Limited evidence suggests that whey protein supplementati...
Given: {eq}\displaystyle V = 25\ mL {/eq} is the volume {eq}\displaystyle m = 25.75\ g {/eq} is the mass Density is defined as mass over...Become a member and unlock all Study Answers Start today. Try it now Create an account ...