Question

Two children are sending signals along a cord of total mass 0.44 kg tied between tin cans with a tension of 31 N . It takes the vibrations in the string 0.60 ss to go from one child to the other.

Answer 1

The question deals with the physics concept of wave speed on a string, which is calculated using tension and linear mass density. Examples provided involve calculating wave properties on a string and tensions in a weighing scenario.

Step-by-step explanation:

The question pertains to the speed of a wave on a string, which can be determined through the given parameters such as mass, tension, and the time it takes for a wave to travel between two points. In scenarios like these, the formula v = √(T/μ) where v is the wave speed, T is the tension in the string, and μ (mu) is the linear mass density of the string, is applicable. For example, if a string of length 30 meters with a tension of 500 N produces 4.5 wavelengths between poles that are 20 meters apart, we can use this information to determine the wave speed and potentially other properties of the wave, such as frequency or wavelength. Similarly, to analyze the case with the baby being weighed, we would apply Newton's second law and the principle of equilibrium to calculate the tensions and the mass of the baby and basket combination.