Answer the following multiple choice questions:
1. to form a solution,
a) one substance must dissolve in another
b) a solid must dissolve in a liquid
c) the solvent must be water
d) a gas must dissolve in a liquid.
2. a salt is dissolved in water, which has a boiling point of 100°c. the boiling point of the solution will be
a) greater than 100°c
b) less than 100°c exactly 100°c
c) exactly 0°c
3. during the formation of a solution, energy is
a) either released or absorbed
b) neither released nor absorbed
c) released only
d) absorbed only
4. a student dissolved equal amounts of salt in equal amounts of warm water, room-temperature water, and ice water. which of the following is true?
a) the salt dissolved most quickly in the warm water.
b) the salt dissolved most quickly in the room-temperature water.
c) the salt dissolved most quickly in the ice water.
d) none of the above

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?

2. -/1 pointsserpse10 2.7.p.017.mi. an object moving with uniform acceleration has a velocity of 14.0 cm/s in the positive x direction when its x coordinate is 2.97 cm. if its x coordinate 2.85 s later is -5.00 cm, what is its acceleration? cm/s2 need ? read it master it

** urgent** the voltage across the primary winding is 350,000 v, and the voltage across the secondary winding is 17,500 v. if the secondary winding has 600 coils, how many coils are in the primary winding? a- 30 coilsb- 583 coilsc- 12,000 coilsd- 332,500 coils