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In what process do sensory receptors become less sensitive to repeated pre-sensations of the same stimulus

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Consider two equal-sized rooms connected by an open door. One room is maintained at a higher temperature than the other. Which room contains more air molecules? 1. It’s impossible to determine. 2. Both rooms contain the same number of air molecules. 3. The cooler room 4. The hotter room

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c) Write out 3 preparations of benzoic acid, a different starting material for each one. You may use preps where you just change the functional group, and/or preps where you construct the carbon chain.

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Consider the following figure. (x, y) y r 0 x Suppose that $(x, y) = (-1, 1)$. Find $r$. r = The terminal side of $\theta$ lies on the given line in the specified quadrant. Find line y = -x quadrant II sin(\theta) = cos(\theta) = tan(\theta) = csc(\theta) = sec(\theta) = cot(\theta) =

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the answer is d) 1.85W This is all of the information in which was provided to answer the question. With this information it should be enough in order to find the the total power dissipated in Q1 and Q2 13. For Vcc = 10 V, find the total power dissipated in Q1 and Q2 when the output voltage is 5 V dc and the load resistor is 100 S. Assume R is chosen such that the minimum achievable output voltage is -8 V: +Vcc URE a) 250 mW b) 1.45 W c) 1.6 W d) 1.85 W e) 2 W

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Calculate the area of the triangles shown below. a. 11 cm 5 cm 48° Ans: [2]

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QUESTION 3 (8 MARKS) The following program cannot be compiled successfully due to some errors. Identify the errors and suggest a possible solution to fix the errors in the program. a) 1 class Bank( 2 private int roi; 3 abstract public int getROI(); 4 public void setROI (int roi){ 5 this.roi = roi; 6 } 7 } 8 9} 1 class CIMB implements Bank{ 2 public int getROI() { 3 return 5;} 4 } 1 public class BankROI { 2 public static void main (String[] args) { 3 Bank b1 = new Bank(); 4 b.getROI(); 5 } 6 } 7} (3 marks) b) 1 class Divide { 2 public static calculateTheArray (int[] arrayIn, int division) { 3 int length = arrayIn.length; 4 int[] arrayOut = new [length]; 5 for (int i=0; i< length; i++) 6 arrayOut[i] = arrayIn/division; 7 return arrayOut; 8 } 9 } 1 public class DivideArrayProgram { 2 public static void main(String[] arg) { 3 int[] y = {4, 6, 8, 10}; 4 int[] z; 5 z = calculateTheArray(y,2); 6 for (int i=0; i< 3; i++) 7 System.out.println(z[i]); 8 } 9 } (5 marks)

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QUESTION 11 Match with the appropriate symbols. ? CO2 ? NH3 ? CH3F A. 14 valence electrons total B. 8 valence electrons total. C. 16 valence electrons total.

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2 Scoreboard [20] Dynamic scheduling can be implemented with different architectures as Scoreboard or the Tomasulo organisation. a) Explain the advantages of dynamic instruction scheduling at run-time in hardware; mention its possible disadvantages. b) What are the hardware-innovations of the Tomasulo architecture? c) There are several types of data-hazards (RAW, WAR, etc.). Assuming an out-of-order proces- sor, explain the data-hazards in listing. ; Multiplication MUL.D F0, F2, F4 ADD.D F6, F0, F4 ; Addition L.D F0, 10 (R2) ; Load DIV.D F4, F2, F0 ; Division SUB.D F4, F6, F8 ; Subtraction Listing 1: Sample assembler code d) Compare the behavioural of Scoreboard and Tomasulo organisation with respect to WAW and WAR hazards. e) Consider a scoreboard architecture with an integer unit, a load/store unit and the following float- ing point units: one adder/subtractor, one divider, and two multipliers. The machine executes the assembler code of listing 1. Determine in which clock cycle each instruction is issued, com- pletely executed, and finished (i.e., result written). Assume that addition/substraction takes 2 cycles, load/store takes 1 cycle, multiplication takes 6 cycles and division takes 9 cycles. Hint: You only have to fill the Instruction Status table. You can, but you do not have to, use the functional unit status and register result status tables (as many as needed) to track the status of the instructions. Instruction status Instruction Dst Srcj Src k Issue Read Exec Write Oper. Comp Res.

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Quarter 1 - SCIENCE Written Work Week 5 Separating Mixtures through Handpicking Directions: Write HP if the materials/mixture can be separated by hand picking and M if the mixture can be separated by the use of magnets. Write your answer before each number. 1.Rotten vegetables from basket of vegetables. 2. Iron fillings from the dust 3.Toy cars from dolls 4. Thumbtacks 5. Yellow mangoes from green mangoes 6. Nail 7. Separating glass from leaves 8. Paper clip 9. Stones from water 10. Paper

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nancy t.