Using the string frequency equations when no tension in known, solve the following problem. you have a wire material that has a (volume) density of 7500 kg/m3 and a yield stress of 0.43 mpa (note: 1 mpa = 1 * 106 n/m2). find a combination of tension and a linear mass density of the wire that will cause the 1 m long wire to have a fundamental frequency of:

2 hz

3 hz

4 hz

Michael has written an e-mail to his employees that describes a new product special that will be introduced to the customers next week. by taking time to make sure the e-mail is well written, logical, and organized, michael has made sure his message has the characteristics of a) effective communicationb) ineffective communicationc) barriers to communicationd) workplace communication