A rectangular swimming pool is 10.0 m wide and 15.0 m long. The water depth varies over the length of the pool in three 5.0 m zones. The zone under the diving board is 3.0 m deep. The shallow zone at the other end is 1.0 m deep. The zone in the middle has a sloping bottom changing from 3.0 m to 1.0 m deep

A. What is the volume of the pool in cubic meters?
B. What is the volume of the pool in liters?
C. The density water at pool temperature is 1.0 g / cm³. What is the mass, in kilograms, of the entire volume of water in the pool?
D. If a swimmer is allotted 5.0 m² of surface swimming space, how many swimmers may be in the pool at one time?

For a particular reaction, ? h = -144.6 kj and ? s = -301.2 j/k. calculate ? g for this reaction at 298 k.

Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?

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?