Asteel guitar string with a diameter of 1.00 mm is stretched between supports 0.800 m apart. the temperature is 0.00 °c. assume both the young's modulus of 20.0 e10 n/m2 and the average coefficient a= 11.0e-6 °c-1 have constant values between 0.00 °c and 30.0 °c of expansion a) (pt) find the mass per unit length of the string (use 7.86e3 kg/m3 for the density). b) (2pts) the fundamental frequency of transverse oscillation of the string is 2.00e2 hz. what is the tension in the string c) (2pts) what was the length of the string before it was stretched? d) (5pts) now, the temperature is raised to 30.0 °c. find the resulting value of the tension in the string

You have been consulted by the mobile phone company hookup about a new augmented reality product called “brows”. they want to develop an alternative to google glasses, which, you recall, is a proposed new product which plans to superimpose a whole range of wireless google services over the user’s ordinary vision of the world. these appear in little circles and ovals, and let you phone people, take photographs, navigate across cities and inside buildings, find shops and update your social media. brows would do this too, but not be limited to special google services. the user would wear a small cylinder-shaped device designed to fit on top of their existing eyewear (glasses or sunglasses). it would project a reversed image onto the inside of the lenses, the reflection of which would be in focus for the user. instead of voice control, the user would control the device by eye and neck movements, which the device would track. the device would connect via bluetooth to the user’s phone, which would supply most of the computing power and wireless connectivity. hookup also wants to know what existing services would be most in demand, and which would not work well with brows. using your knowledge of augmented reality, wearable technology and interface design, is the project feasible? if not, why not? if feasible, how could the product need to be modified for a better experience?

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

What is the temperature in degrees celsius of a substance with a tempature of 49k