Slope‑intercept form of a line: y = m x + b Point‑slope form of a line: y – y₁ = m (x – x₁) Standard form of a line: A x + B y = C Rate of change (slope): Δy/Δx = (y₁ – y₂)/(x₁ – x₂) Quadratic equation: a x² + b x + c = 0 Quadratic formula: x = [–b ± √(b² – 4 a c)]/(2 a) Sphere surface area: SA = 4 π r² Sphere volume: V = (4/3) π r³ Cone surface area: SA = π r (r + h) Cone volume: V = (1/3) π r² h Trapezoid area: A = ½ (b₁ + b₂)
Kcat = Vmax/ (Et)...... V0 = Vmax [S] / (ɑKM + [S])........
KI - dissociation constant for the inhibitor from the enzyme
Competetive Inhibiters: Affects the slope of the line, Y intercept (1/ Vmax) does not change, Km does Change (when A is high slope gets steeper and line moves closer to origin)
UnCompetetive Inhibiters: Apparent Km changes and Vmax changes (Parellel)
Mix: A is bigger and more competitive. a is less the uncompeteive. a is equal then non competeive.
Used:1 glucose; 2 ATP;
Here are detailed answers to all your questions without using tables:
1. Differentiate executeQuery()
and executeUpdate()
with example:
The method executeQuery()
is used when you want to retrieve data from the database, typically using a SELECT
statement. It returns a ResultSet
object which contains the data returned by the query.
Example:
ResultSet rs = statement.executeQuery
("SELECT * FROM users");
while (rs.next()) {
System.out.println(rs.getString("username"));
}
The method executeUpdate(
1. Functions of I/O Interface and Its Need
Functions of I/O Interface:
Synchronizes the speed difference between CPU and I/O devices.
Selects and addresses the appropriate I/O device for communication.
Provides control and timing signals for data transfer.
Buffers data during transfer, managing data flow between CPU and devices.
Converts data formats (e.g., serial to parallel, digital to analog and vice versa).
Detects and reports errors during data transfer.
Handles interrupts to inform CPU when
Sure! Here's a detailed explanation for each of your questions:
Software Engineering is called a layered technology because it is built on a foundation with multiple layers, each supporting the one above it. The layers are:
Quality Focus (Foundation Layer):
Process Layer:
1. Shape Memory Alloys (SMAs)
Definition
Shape Memory Alloys R metallic materials that can recover their original shape after deformation when exposed 2 a specific stimulus, usually heat.
The most common example is Nickel-Titanium (Nitinol), known 4 its shape memory & superelastic behavior.
Mechanism
a. Phase Transformation
SMAs operate through a solid-state transformation between 2 phases:
Explain array implementation of list. 5 marks
An array implementation of a list involves using a contiguous block of memory to store elements, allowing for efficient access and manipulation. Here’s a breakdown of the key aspects of this implementation:
1.) Structure:
°An array is a fixed-size data structure that holds elements of the same type. In the context of a list, an array can be used to store the list elements in sequential memory locations.
°The size of the array is typically defined
Define ADT. Explain array as an ADT? (2+3 marks)
An Abstract Data Type (ADT) is a conceptual model that defines a set of operations and behaviors for a data structure, without specifying the underlying implementation details. Arrays, as an ADT, define how data is organized and accessed through indices, but not how it's actually stored in memory.
Arrays as an ADT
-An array ADT defines a collection of elements that can be accessed by their index (position).
-Common operations on an array ADT
Written and Lengthy Constitution – It’s one of the longest constitutions in the world.
Blend of Rigidity and Flexibility – Some parts can be amended easily, others require a special majority.
Parliamentary Form of Government – Modeled after the British system.
Federal System with Unitary Bias – Powers are divided between Centre and States, but Centre holds more power.
Independent Judiciary – Judiciary is impartial and has the