3B Wave Motion II 5 Chapter 5 Nature of Waves Practice 5.1 (p. 7) 1 B 2 D 3 (a) Transverse wave 11 Speed = f = 5 0.2 = 1 m s1 1 1 (ii) Period = = = 0.2 s f 5 (a) (i) (b) A heavier string (length unchanged) has greater mass per unit length. Therefore‚ (b) Longitudinal wave 4 (a) Water wave and EM wave (b) Sound wave 5 12 For case I‚ energy is transferred to the cork directly from the stone. For case II‚ energy is transferred to the cork through water waves. 6 = 1.6667 = 1
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Title: Physical and Chemical Properties Purpose: The purpose of this experiment is to investigate the physical and chemical properties of pure chemical substances by subjecting them to various environmental extremes. Procedure: Filled each test tube with substances provided and subjected them to various conditions. These conditions included‚ heat‚ cold water‚ hot water‚ acid and basic additions and tested on litmus paper. The reactions were observed and documented at each step. Data tables:
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citizens by modeling quality care‚ and building a strong community of like minded care givers.” I am the executive director of BK Enterprises which consists of Early Childhood‚ Youth‚ and Adult and Senior service programs. In the interest of brevity I will only expound upon the early childhood component of my venture in this paper. The Early childhood component of BK Enterprises includes Our Village Child Development Center (CDC)‚ an award winning‚ state-of-the-art childcare center serving children
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Name: |Date:| Exp 1: Observations of Chemical Changes|Lab Section: | Data Tables: Part 1: |Chemicals|Well No.|Observations of the Reaction| A.|NaHCO3 + HCl| H12|White and bubbled slightly and settled down to smaller smaller bubbles| B.|HCl + BTB| H11|Golden yellow; looked darker under the black paper| C.|NH3 + BTB|H10 |Dark blue| D.|HCl + blue dye| H9|Greenish color| E.|Blue dye + NaOCl| H8|Blue and lighter than NH3+BTB solution color| | with the 1 drop of HCl| H8|Turned blue green
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Manual Testing Faq’s What is software testing? Software testing is the process used to help identify the correctness‚ completeness‚ security‚ and quality of developed computer software. Testing involves operation of a system or application under controlled conditions and evaluating the results. Controlled conditions should include both normal and abnormal Why Management some times not serious about testing? Solving problems is a high-visibility process; preventing problems is low-visibility
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Lab 2: Infra-Red (IR) - Nuclear Magnetic Resonance (NMR) Exercises In Molecular Spectroscopy - Structural Determination Organic Chemistry II CHEM 2425 Manrique October 30‚ 2012 Alex Wolf Introduction For the purposes of this lab‚ the chemical formula will be given‚ and the degrees of unsaturation can be calculate from the formula (2C+2)-(H+Hal-N)/2. The degrees of unsaturation will give clues as to the structure. A double bond‚ as well as a ring will have one degree of unsaturation each
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The Scientific Method Portland Community College Staff* Version 42-0207-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing
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Lab 1: Observation of Chemical Changes Name: Tyler Lee Lab Partners: none Date of Experiment: Feb 26 2015 Location: My House Course Number: CHE111 Abstract: The point of this lab was to test and observe chemical changes when mixing chemicals together and also through heating chemicals. Experiment and Observations: The experiment performed in the first part of this lab was to mix various chemical solutions together and then observe and record the chemical changes‚ also if a chemical
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Math Practice Lab Pre-Lab Questions: 1. The rules concerning handling significant figures are as follows: When dividing/multiplying The answer has no more significant digits than the number with the fewest significant digits (the least precise figure). Round off after calculations have been performed. When adding/subtracting Answer has no more places than the addend‚ minuend‚ or subtrahend with the fewest number of decimal places. Significant figures are irrelevant when adding/subtracting
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Jan Levi O. Pangilinan Mr. Jestoni Basco BSIS – IIIB BIOS(Basic Input/Output System) 1. What is BOIS? The term BIOS (Basic Input/Output System) was invented by Gary Kildall and first appeared in the CP/M operating system in 1975‚ describing the machine-specific part of CP/M loaded during boot time that interfaces directly with the hardware (a CP/M machine usually has only a simple boot loader in its ROM). Later versions of CP/M (as well as Concurrent CP/M‚ Concurrent
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