Recall for a capacitor ɛ is the permittivity of the dielectric used, ε = € , & , & ,= relative permittivity and E. = permittivity of vacuum Assume "Doc" Brown's prototype flux capacitor used a super alumina oxide dielectric which achieved 1000X the permittivity of normal alumina oxide, or 40,000X the permittivity of vacuum, and can achieve 1 mm spacing between plates. Further assume "Doc" limits the cross sectional area of his flux capacitor to 1 square meter, in an attempt to fit in the Delorean (this is the overlap area of the plates; the entire capacitor is a little larger to account for the ends. Don't worry about this). Calculate the height required for the capacitor in #2.

A60-kg skier starts at the top of a 10-meter high slope. at the bottom, she is traveling 10 m/s. what is the gpe? gpe =mgh 2,880 j 5,880 j 3,000 j 1633j

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?

Blank liquids and gases exert a buoyant force on objects placed in them