Rite or type work and solutions on a separate paper. if written, write legibly. 1. a steel ball is dropped from rest from a diving platform. a. what is the velocity of the ball 0.8 seconds after it is release? b. what is its velocity 1.6 seconds after its release? 2. a ball is thrown upward with an initial velocity of 15 m/s from on top of a 40 m building. what is the maximum height of the 3. a ball is thrown downward with an initial velocity of 12m/s from on top of a 32 story building. if 1 story 3 m, how long does it take the ball to hit the ground? 4. extra credit: if a ball is thrown up from the street and you see it pass your building's window that is 6 m above ground on its way up; and then see it 2 s later on it way down. what is the maximum height of the ball?

Which describe reflection? check all that apply. light bounces off a boundary.

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?

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?