Since the reaction time for such stimuli is usually between 150 and 350ms, it is inappropriate to use a stop watch as it lacks precision. Thus for this experiment, the student uses silent and audible switches and a clock/timer to measure reaction times to purely audible or visual stimulus. Apparatus * clock, * clicker, * Logger Pro file RT The apparatus is very simple. A clock starts when a remote trigger switch is activated. This switch can be activated with or without a sound.
(Choose two answers.) a,c 4. A PC NIC and a switch port create one electrical circuit to use when sending data from the PC to the switch. The transmitter uses a simple encoding scheme that uses a higher amplitude to encode 1 and a lower amplitude to encode 0, sending 1 bit in each bit time. The bit rate is 2000 bits per second (2000 bps).
Unit 7 Research Paper 1: CMOS How has CMOS memory changed over the years? CMOS really hasn’t changed very much from what I could find on the internet… Mainly the speeds have increased and the noise has been reduced it also went from analog to digital. Originally, the IBM PC only used of a small portion of CMOS memory and the balance of the 64 bytes were left undefined. Once other manufacturers cloned the AT form factor it wasn’t long that other areas of the CMOS was used by various BIOS manufacturers for such user-selectable options as memory wait states, memory type, initial boot drive selection, boot-up clock speed, hard drive interface type, green options, shadow RAM options, cache options, and password protection of the CMOS contents. It still uses a small battery incase there is a power outage and still uses volatile RAM.
Under the assumption that current and voltage are both sinusoidal functions of time (t, in seconds) and both have the same frequency of 60 cycles per second (period=1/60), let C be the current in Amperes (Amps) with a maximum current of 5 Amps at zero seconds (t=zero). Let V be the voltage that is “leading” the current (‘leading’ corresponding to a negative phase shift) by .003 seconds, meaning voltage reaches its maximum of 180 volts .003 sec before the current reaches its maximum. Both functions begin at zero- there are no phase shifts. Question 1, Part A. Current as a function of time: Based upon the given information, we will be determining the Amplitude (A), period (and thus, B), and the phase shift (C).
TOPIC 8 Chi-Square goodness-of-fit test Problem 12.1 Use a chi-square goodness-of-fit to determine whether the observed frequencies are distributed the same as the expected frequencies (α = .05) Category | fo | fe | 1 | 53 | 68 | 2 | 37 | 42 | 3 | 32 | 33 | 4 | 28 | 22 | 5 | 18 | 10 | 6 | 15 | 8 | Step 1 Ho: The observed frequencies are distributed the same as the expected frequencies Ha: The observed frequencies are not distributed the same as the expected frequencies Step 2 df = k – m – 1 Step 3 α = 0.05 x 2 0.05, 5df = 11.0705 Step 4 Reject Ho if x 2 > 11.0705 Category | fo | fe | | 1 | 53 | 68 | | 2 | 37 | 42 | | 3 | 32 | 33 | | 4 | 28 | 22 | | 5 | 18 | 10 | | 6 | 15 | 8
They will connect in Telecom Closets 1 and 2. In telecom 1 it will remain Cat 7 using 10G Base-T technology between the punch down block and the three switches. From the switches to the wall plates by the video kiosk, and on to the kiosk, cabling will switch to Cat 6a, using 1000 Base-T technology, achieving a throughput of 1000Mbps. Keeping in mind, that with a star topologies, and using switches, each kiosk has its own dedicated channel. In telecom closet 2, from the punch down block, to the switches, to the wall plates, and on to the offices workstation, plus one shared printer, cabling will change to Cat 5e UTP, using 1000 Base-T technology, achieving a throughput of 1000Mbps.
Desktop workstation backups generally take less than 10 minutes. Using the format below, describe the steps necessary to recover a desktop workstation computer that encounters a disk drive failure at 5:30 a.m. local time. The user arrived at work and found that the computer would not boot. Answer the following questions: 1. How much data has been modified between the last backup and the time of failure?
Adequate separation will have occurred when the cresol red dye front has moved at least 50 mm from the wells. Gel may be stained either with 1 µg/ml ethidium bromide for 10 minutes or 0.05% methylene blue (or proprietary) stain for 30 minutes, followed by 20-30 minutes destaining with water. * If adding Bromophenol Blue loading dye to sample: do not add the loading dye to the entire sample, leave 10µl of sample without loading dye if you will be sending sample in for
In SIPOC analysis it is very clear about where the process starts and where the process ends, which helps define the boarding project scope and so it’s a very good tool here. b. Calculations & Answers –Here we separate the process of boarding a commercial fight into 7 steps and developed a SIPOC Chart. So the completed SIPOC Flow chart is below: c. Interpretation –This chart establishes project scope and is very clear about where the process starts and where the process ends. Usually SIPOC chart is within 5 steps while we use 7 steps instead of within 5 steps is because each step is performed at different time commonly and is best not to combine them.
* Its benefits are price it’s less expensive to build and run. But if one of the lines goes down then your whole network goes down. Exercise 7.2.4 Circuit classification | Total Bandwidth (Mbps) | Features and summary | T1 | 1.544 | Uses 24 channels to communicate. | E1 | 2.048 | Uses 32 channels to communicate. | T3 | 44.7 | Uses 672 channels to communicate.