Chapter 16, Problem 1RQ

What does a relational database use to uniquely identify each row in a table?a) indexesb) foreign keysc) non-primary keysd) primary keys

What happens when you click the Edit button for a row in a GridView control?a).The Edit button is replaced by Update and Cancel buttonsb). The editable bound fields are displayed in text boxesc). The Delete button is removedd).All of the abovee).A and B only

Which of the following isn’t true for a SiteMapPath control?a). It requires a SiteMapDataSource control.b).It shows the links that led to the current page.c).It lets you specify the number of parent nodes to display.d). It automatically uses the web.sitemap file.

// defining the pins const int green_led = 3;const int red_led = 5;const int yellow_led = 6;const int buzzer = 4;const int button_status = 12;const int button_fall = 11;const int button_safe = 10;const int potentiometer = A0; int pot_value;int button_fall_state;int button_safe_state;int last_button_fall_state;int buzzer_state;int threshold = 512; int button_status_state = 0; void setup() {  // put your setup code here, to run once:Serial.begin(9600);// Initializing digital pins as outputpinMode(green_led, OUTPUT);pinMode(red_led, OUTPUT);pinMode(yellow_led, OUTPUT);pinMode(buzzer, OUTPUT); // Initializing digital pins as inputspinMode(button_status, INPUT);pinMode(button_fall, INPUT);pinMode(button_safe, INPUT);// initializing analog pin as inputpinMode(potentiometer, INPUT); digitalWrite(buzzer, LOW);digitalWrite(yellow_led, LOW); } void loop() {  // read current state of the status button  button_status_state = digitalRead(button_status);     if (button_status_state == HIGH) {…

(1) The velocity v (m/s) of air flowing past a flat surface is measured at several distances y (m) away from the surface. Determine the shear stress T (N/m²) at the surface (y = 0), using Newton's viscosity law: T = u(dv/dy). Use the following data, and provide an O(h) approximation and an O(h²) approximation. Assume μ = 1.8 × 10-5 Ns/m². (Tip: see Fig. 23.1 for finite difference approximations) y (m) 0.0 0.002 0.004 0.006 0.012 v (m/s) 0.0 0.287 0.593 0.899 1.915

How to draw the decision tree using a mac book? Can I have the instructions?

Problem 1 Write a function named initialLetterCount that takes one parameter, wordList - a list of words. Create and return a dictionary in which each initial letter of a word in wordList is a key and the corresponding value is the number of words in wordList that begin with that letter. The keys in the dictionary should be case-sensitive, which means 'a' and 'A' are two different keys. For example, the following is correct output: horton = ['I', 'say', 'what', 'I', 'mean', 'and', 'I', 'mean', 'what', 'I', 'say'] print(initialLetterCount(horton)) {'I': 4, 's': 2, 'w': 2, 'm': 2, 'a': 1} Problem 2 Write a function named initialLetters that takes one parameter, wordList – a list of words. Create and return a dictionary in which each initial letter of a word in wordList is a key and the corresponding value is a list of the words in wordList that begin with that letter. There should be no duplicate words in any value in the dictionary. For example, the following is correct output:…

Answer this in hand written note

Please help me wiht this and show the answer on hand written