Astring of length l is rigidly held at both ends. the string is plucked—like you might strum a guitar string—and a standing wave is formed in the string. the fundamental frequency for this standing wave is f sub 1 is equal to start fraction 1 over 2 times l end fraction times start square root of start fraction t over mu end fraction end square root, where t is the tension in the string and mu is the mass density of the string. what is the frequency of the third harmonic, or second overtone?

1. an economy consists of three workers: larry, moe, and curly. each works 10 hours a day and can produce two services: mowing lawns and washing cars. in an hour, larry can either mow one lawn or wash one car; moe can either mow one lawn or wash two cars; and curly can either mow two lawns or wash one car. a. calculate how much of each service is produced under the following circumstances: a. all three spend all their time mowing lawns. b. all three spend all their time washing cars. c. all three spend half their time on each activity d. larry spends half of his time on each activity, while moe only washes cars and curly only mows lawns b. using your answers to part a, draw a production possibilities frontier and label points a, b, c, and d on your graph. explain why the production possibilities frontier has the shape it does. c. are any of the allocations calculated in part a inefficient? explain.