Mirror Sphere
by admin on April 2nd, 2008
filed under Mirrors
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Convex mirror?
Shiny lawn spheres placed on pedstals are convex mirrors. once such sphere has a diameter of 48 cm. a robin whose height is 10.9 cm sits in a tree 4 m from the sphere. as measured from the surface of the sphere, where is the image of the robin? Answer in units of cm.
What is the height of the robin's image? Answer in units of cm.
I have no idea how do to this problem.
(1/4)+(1/q)=(1/0.12)
q= - 0.124m
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Blackberry Pearl â The Jewel In The Sphere Of Smartphone
The BlackBerry Pearl series marks a gem in the segment of enterprise based mobile phone which comes with a horde of features which blend rich multimedia functions to the hardcore business features. These cell phones boast off those features that you will be searching for in any mobile phones which are exclusively intended to meet business needs. The Pearl series comprises four smart handsets – BlackBerry Pearl 8100, BlackBerry Pearl 8120, BlackBerry Pearl 8120 and BlackBerry Pearl 8130. All four handsets mirror most of the features with slight variations from perspectives of designs, colours and some exclusive features. Designs, features and functions make Blackberry Pearl series handsets stand out from other business devices. Following points will explain why and how –
Design Of Pearl
Design of Pearl series is one of the major highlights and one of the unique selling points of the series. Its small, cool and light construction is maintained by shinny casing which comes in different colours from black, silver, grey and pink depending from one handset to another with smooth curves giving good drip to hands. The Pearl series features 2.2†screen with menu keys and white backlighting enabled keyboard.
SureType Technology
SureType® QWERTY keypad technology is another distinct feature of Blackberry Pearl handsets. All four handsets come with this finger friendly keyboard designs which is consisting of dedicated keys such as ‘End’, ‘Send’, and ‘Mute’ keys along with a pearl-like trackball navigation system and user definable convenience keys. The keys are designed to fathom users’ word patterns and typing letting them typing their message conveniently and quickly. Camera And Multimedia Features
The Blackberry Pearl smartphone series is well equipped with good camera features to take good snaps. The Peark series comprises 1.3 mega pixel lens with self portrait mirror, flash and zoom. Its 2.2†screen can display images taken with 65k colours support at the resolution of 240 x 260 pixel. Users are entitled to use pictures as email, picture messages or share through Instant Messages and can also upload to photo sharing sites such as Flickr™2 and Facebook®. Other multimedia features of Pearl enable playing music with good sound quality, transfer desktop iTunes® music files through BlackBerry® Media Sync.
The Blackberry Pearl is equipped with BlackBerry® Maps, GPS capabilities, Wi-Fi, mobile streaming and many more.
About the Author
John Michel writers articles on mobile phones for NextGenMobileShop.co.uk. Visit the site to get information on Cheap BlackBerry 8900 Curve i.e. BlackBerry 9500 Storm Deals etc.