1. List and describe the events that take place during the boot process. · Switching power button on, turns the power supply on and gets to the required voltage level, then the fan switches on and everything else starts powering up. · The Central processor unit (CPU) initializes itself, triggered by a series of clock ticks generated by the system clock, then look to the system's ROM BIOS for its first instruction in the startup program. · The ROM BIOS stores the first instruction, which is the instruction to run the power-on self-test (POST).
8 5 7 8 (a) 7 7 8 6 6 11 7 5 5 7 9 9 6 7 6 7 Construct a frequency table from the above data and add a cumulative frequency column. For this data, find: (i) the median; (ii) the lower quartile; (iii) the upper quartile. 2 (b) 1 1 1 2 (c) Construct a boxplot for this data. [Turn over [ X100/201] Page three Marks 3. The diagram below represents a sphere.
7. You want to build a circuit which causes a ligh tbulb to turn on when you throw a switch. So, you build the circuit if Figure 5. When the switch is connected to point A the capacitor charges, and when you connect the switch to point B the light goes on. Let the resistance of the light bulb be Rℓ = 1.50 ×103 Ω, the potential difference across the battery is VB = 10.0V , and the capacitor has a capacitance of C = 1.35 × 10−4 F
Suggest two reasons for this change. Task 2 Press back but not clear and change the number of chips to 10 but leave the acid concentration at 1.0 mol/dm3 . Click start and take readings approximately every 3 seconds (by clicking the take readings button) until the mass reaches 0.0 g. Stop the reaction immediately. Plot these results on the same grid as the results of your first experiment. How does the rate of reaction in Task 2 compare with the rate in Task 1?
pyridinium hydrobromide perbromide type of stationary phase column length column temperature rate flow of the carrier gas List the 4 general factors that affect the separation obtained on a gas chromatograph What specific technique is used to collect/isolate your purified unknown compound at the end of the recrystallization experiment? suction filtration 14 of 22 4/16/12 9:15 PM StudyBlue Flashcard Printing of Lab Final 2211L UGA
Now that you have everything out of the way we can get started on tuning this engine up. First you start with number one cylinder, which is on the driver side front of the engine, remove the rubber boot from the first spark plug and mark it with a marker showing its number one next take your socket and ratchet and unscrew the plug from the side of the head. The plugs we choose are pregapped so we wont have to gap them carefully install the new plug in to he head make sure you don’t hit the electrode on the tip of the spark plug tighten it to approximately 35 inch pounds. Next follow the plug wire that you removed back to the distributer and remover the rubber boot from that point match that wire with one of the new ones as close as possible mark that wire as cylinder 1 and mark the distributer cap where you took that one off. I like to continue on the odd side of the vehicle so we’ll head to cylinder number 3.
Test 2 100 points Math 5C Friday, September 28, 2012 Name_______________________________________ Read and answer the questions asked below. You must show all of your work to receive credit. Mathewson 1) Answer the short- answer, T/F questions. A. The vector function r(t) = t sin t, ___________ , t describes a spiral on the surface of a cone.
Tammy Thanaporn Amornkasemwong 1st September 2011 Science Period 8 Introduction: How much energy can be released from fuels? Combustion is the process of burning fuel in order to produce heat. The intention of this experiment is to find whether different fuels produce different amount of energy. In the process of combustion in this experiment, cheeto, half a cashew nut, wax candle and ethanol are used as fuels combust with lighter, as heat and oxygen. When the fuels combust, oxygen and fuels react, and heat released.
19/04/12 Physics Lab Report : determination of Terminal Velocity Maksym Panas This lab investigates the velocity of a ball bearing falling through glycerin. A small metal ball bearing was released into tube,140 cm long, containing glycerin. When released , the bearing accelerated to terminal velocity and than maintained the speed until the bottom of the tube. I decided to find the clearings terminal velocity by comparing the distance taken for t to travel through the glycerin and the time taken to do so. Research Question : What is the terminal velocity of a ball bearing in glycerin?
Displace the masses to cause oscillation 5. Measure the time taken for 10 oscillations, therefore get the time for 1 oscillation Set up the experiment as shown below: Results: length | Time | Ball size | 138.5 | 2.48 | S | 45.8 | 1.39 | S | 39.2 | 1.19 | S | 32.5 | 1.2 | M | 42.8 | 1.25 | M | 36.5 | 1.18 | M | 33.4 | 1.15 | M | 26.4 | 0.94 | L | 19.2 | 0.8 | L | 12 | 0.63 | L | Analysis: The graph of pendulum is shown on the page enclosed. The graph of the time taken for 1 oscillation and length of pendulum is a linear graph. The above table shows that time period of a pendulum varies with the length of the pendulum.The time taken for 1 oscillation is calculated by dividing the time for 10 oscillations. Question discussion: Why did we time 10 oscillations of the pendulum?