Предмет: Физика, автор: kirgizan1

світловий промінь йде з повітря в воду. Кут падіння 65°, кут заломлення 36°. Визначити швидкість світла у воді

Ответы

Автор ответа: Dedagenn
0

sinA1(пад., возд)/sinB2(прел.,вода)= V1/V2=с/V2, V2= c*sin36/sin65= 3*10^8*0.59/ 0.91=1.95*10^8 м/с -ответ

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1. The ____ is an input device used for keying text.
2. Data stored in _____ is lost when the computer is turned off.
3. Each piece of information stored in the computer is identified by a ___ number.
4. School districts use this type of computer to build their networks around, a ____ .
5. The instructions that a computer needs to tell it what to do is called ____ .
6. The ___ works with peripherals to move data & commands between the CPU & monitors, printers & disk drives.
7. The most popular operating systems are ____ and Macintosh.
RAM- Random Access Memory
software
keyboard
minicomputer/server
operating system
distinct
Microsoft Windows
***********************
8. The _____ is the most basic device for ___ sound into a computer.
9. The sound card takes the _____ from the microphone which is in ____ form and changes it to digital form that the computer can recognize.
10. The ____ works by digitizing the sound, ____ sound and then plays the saved sound.
11. Several ways ____ still images into a computer include using a ____ , digital camera or scanner.
12. To convert analog videos to ___ where they can be used on the computer you need a ____ .
13. ____ seen on the monitor are created by a ____ .
14. ____ printers are the best for ____ color images.
15. Three types of devices ____ video include: _____ , televisions and headsets.
16. ____ allows computer ____ text files out loud.
17. ____ (MIDI) allows computer____ music.
fax machine
digital
Thermal Transfer
to output
to create
analog
inputting
video adapter
sound
data projectors
imagus
to read
printing
video capture card
Musical Instrument digital Interface
Speech Synthesis Software
processing
digital
microphone
to input
sound card
*************************
18. The ____ controls the computer, and manages its ____ .
19. Another ____ for turning on your computer is _____ it.
20. BIOS stands for basic input/output system, it manages and ____ the computer's ____ .
21. As a computers boots, it ____ a series of test called the ____ , or POST.
22. Every operating system has ____ , the settings a program automatically uses, unless others ____ .
23. The file name you ____ to the file should, in some way, ___ of the file.
24. Two or three letters, following a period, that indicate in which application the file
_____ and the file format it uses is called ____ .
25. _____ files across operating systems is called ____ .
26. ____ occurs when a file is broken into pieces that ____ in different places on a hard drive.
are selected
describe the contents
hardware
performs
assign
work
file fragmentation
sharing
was created
are saved
cross-platform compatibility
word
default options
configures
file extension
to boot
operating system
power-on self test
**********************
27. ____ application software is designed for a very limited purpose.
28. _____ application software is designed for general purposes, it meets the needs of many.
29. ____ programs include word processors, spreadsheets, databases and presentation programs.
30. Working with more than one computer ____ is called ____ .
31. Early working copies of application software given to users ____ the program are called ___ .
32. ___ that stops working after a certain amount of time is ____ software.
33. ____ means ___ problems.
34. FAQ's, ____ , give helpful examples and hints to common problems.
to correct
vertical
application
personal productivity
horizontal
software
limited trial
troubleshooting
beta versions
multitasking
to test
frequently asked questions