NosajW said:A human hair is about 100 μm across. Estimate the number of hairs in a typical braid.
The average number of hairs on a person’s head = 100,000, and the answer is supposed to be 10,000. Can someone explain how you would get 10,000? Thanks in advance
NosajW said:Yeah it's homework and I am taking classical physics so I thought I'd post it here. This is the beginning of the course so we're doing units and basic stuff. This question is ridiculous, how big is the radius of a typical braid supposed to be anyway.
The purpose of estimating the number of hairs in a typical braid is to gain a better understanding of the composition and density of human hair. It can also be used in various industries, such as hair care and wig making, to accurately measure and estimate the amount of hair needed for different products.
The number of hairs in a braid can be estimated by counting the number of strands in a small section of the braid and then multiplying it by the total number of sections in the braid. This method may not be 100% accurate, but it can provide a rough estimate.
No, the number of hairs in a braid can vary from person to person depending on their hair thickness and the size of the braid. Additionally, some people may have naturally thicker or thinner hair, which can also affect the number of hairs in a braid.
Yes, the number of hairs in a braid can change over time due to various factors such as hair shedding, hair growth, and hair damage. Therefore, the estimated number of hairs in a braid may not be the same every time it is measured.
Estimating the number of hairs in a typical braid is important for various reasons. It can help in determining the amount of hair needed for different hair products, understanding hair density and composition, and monitoring hair growth and health. It can also be used in scientific research and studies related to hair.