In the United States, a "hundredweight" (abbreviated as cwt) is a unit of weight or mass used in various industries, especially in agriculture and commerce. The hundredweight is equivalent to 100 pounds (lbs). It is often used to express weights or quantities of goods, particularly in contexts like the sale of agricultural products, grains, and some industrial materials.
1 hundredweight (US) = 100 pounds (lbs)
Hundredweights are commonly used in trade and commerce, especially for bulk items where the use of pounds or tons may not be as convenient. It provides a middle-ground unit for measuring weight between the pound and the ton. When you see prices or quantities listed in hundredweights in the United States, it means that they are referring to units of 100 pounds each.
The petagram (Pg) is a unit of mass in the metric system. It is equal to one quadrillion (10^15) grams. The petagram is commonly used in scientific and environmental contexts, particularly in discussions related to global carbon cycles, climate change, and large-scale ecological measurements.
To put it in perspective, one petagram is equivalent to 1,000 teragrams (Tg) or 1,000,000 gigagrams (Gg). It is a valuable unit for measuring and quantifying large quantities of materials, such as the mass of carbon stored in forests or the carbon emissions from human activities on a global scale. While not commonly used in everyday conversation, the petagram plays a crucial role in scientific research and discussions concerning the Earth's ecosystem and climate.