1. Answer with True or False and explain why. a.) All graphs can have only one possible minimum spanning tree. O True O False b.) It is possible for Prim's algorithm and Kruskal's algorithm to come up with different (i.e., with different edges) but equally valid Minimum spanning trees. O True O False

1. Answer with True or False and explain why. a.) All graphs can have only one possible minimum spanning tree. O True O False b.) It is possible for Prim's algorithm and Kruskal's algorithm to come up with different (i.e., with different edges) but equally valid Minimum spanning trees. O True O False

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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2. RADIOACTIVE DECAY, REVISITED This is a modified version of chapter 1 problem 4 in your textbook. Consider the radioactive decay of nuclei A into nuclei B, which can then also decay. The numbers of each species as a function of time are given by N₁ (t) and NB (t), and the decay of each species is governed by¹: dNA dt == NA dNB NA NB = dt ΤΑ TB where T and T are the decay time constants for each type of nucleus.
71 Use the Boolean algebra to: a. Prove that: x (x. y) + x (x +y) + (x. y)) = x ỹ %3D b. Solve the expression: F(x,y,z) = xy Z + xyz+xy z %3D c. Solve the expression: F(A, B, C) = A BC+ABC+AB C+A BC
In a classroom, there are 9 students, their height are as follows: 160cm, 1.6m, 165cm, 165cm, 5"7', 175cm, 175cm, 175cm, 215cm.“ 1. We are going to do an Min-Max normalization, what is the output range that we get? And what is the 9 numbers after normalization?-
Is the following true or false? Prove your answer.
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3. An unnamed faculty uses three screens on his desk. One measures 1920 x 1080 pixels and the other two measure 1280 x 1024 pixels. a. Create variables for height and width (in pixels) for each of these displays and set these variables equal to their respective measures. b. Determine the total number of pixels across the three displays. This numerical answer should be represented by a variable. c. If each pixel were to draw 1.2e-5 watts, create a variable for this value and determine the wattage required to activate all the pixels across all three screens at once. This numerical answer should be represented by a variable.
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b Mra. Q5. A cylinder is 150 mm mean diameter and 750 mm long with a wall 2 mm thick. It has an internal pressure 0.8 MPa greater than the outside pressure. Calculate the following. E=200 GPa H i. The circumferential strain. ii. The longitudinal strain. EL iii. The change in diameter. iv. The change in length. L iv. The change in volume v 2:0.3 أطلبوها من مكتب لكلمات Q6. The thin walled cylinder can be supported in one of the two ways as shown. Determine the state of stress in the wall of the cylinder for both cases if the piston P causes the internal pressure to be 500 KPa. The wall has a thickness of 5 mm and the inner diameter of the cylinder is 200 mm. 2) Piston Piston 百货

The square is deformed into the dashed parallelogram. Calculate the following: a. normal strain that occurs along the line that connects point B and the point midway between C and D b. shear strain at C (in º) y B 15 mm A F 89.7° 15.18 mm- -15 mm- 15.18 mm- CI D 15.24 mm
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