Protits are usually
Question 1 options:
A. Single-celled (unicellular
B. Ma...
Physics, 26.02.2021 23:40 starfox5454
Protits are usually
Question 1 options:
A. Single-celled (unicellular
B. Many-celled (multicellular)
Answers: 1
Physics, 21.06.2019 15:50
Aneutron and a proton combine to form a nucleus. why does the mass of the nucleus differ from the sum of the masses of the individual nucleons?
Answers: 1
Physics, 22.06.2019 00:20
You have been consulted by the mobile phone company hookup about a new augmented reality product called โbrowsโ. 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 userโs 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 userโs 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?
Answers: 2
Physics, 22.06.2019 06:00
The frequency of vibrations of a vibrating violin string is given by f = 1 2l t ฯ where l is the length of the string, t is its tension, and ฯ is its linear density.โ (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and ฯ are constant) (ii) the tension (when l and ฯ are constant) (iii) the linear density (when l and t are constant) (b) the pitch of a note (how high or low the note sounds) is determined by the frequency f. (the higher the frequency, the higher the pitch.) use the signs of the derivatives in part (a) to determine what happens to the pitch of a note for the following. (i) when the effective length of a string is decreased by placing a finger on the string so a shorter portion of the string vibrates df dl 0 and l is โ f is โ (ii) when the tension is increased by turning a tuning peg df dt 0 and t is โ f is โ (iii) when the linear density is increased by switching to another string df dฯ 0 and ฯ is โ f is โ
Answers: 3
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