1.1 GRAVITY AND GRAVITATIONAL FIELDS 1.1.1 Define weight as the force on an object due to a gravitational field. Weight is the force experienced by an object due to the presence of a gravitational field. This force is directly related to the strength of the gravitational field acting on an object and the mass of that object. m = mass‚ g = acceleration due to gravity m = mass‚ g = acceleration due to gravity Fg = mg Fg = mg 1.1.2 Explain that a change in gravitational
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Motion NCERT Chapter Questions and Answers and other Q & A Q1: An object has moved through a distance. Can it have zero displacement? If yes‚ support your answer with an example. Answer: Yes an object can have zero displacement even though it has moved through a distance. It happens when the object moves back to its original position i.e. final position coincides with the starting position. Example: Suppose an object travels from O to C and then comes back to original position O. Total
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Laura Marie PHI 104-51 MIDTERM MIDTERM EXAM INSTRUCTIONS: Please answer the following questions with a few sentences or a paragraph. 1. Define Ethics: Ethics are principles of right conduct that serve as rules for people. It is the understanding of what is right and wrong‚ and choosing to do what is right. 2. What are the 5 Steps to Making an Ethical Decision? The first step in making an Ethical decision is to recognize a moral issue. The second step
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NCS/SA-1st/11-12/XII/Physics/70 Total Pages 4 FIRST SUMMATIVE ASSESSMENT : 2011-12 Subject : PHYSICS Time : 3 hrs. General Instructions: (i) (ii) (iii) All questions are compulsory. There are 30 questions in total. Questions 1 to 8 carry 1 mark each‚ 9 to 18 carry 2 marks each‚ 18 to 27 carry 3 marks and 28 to 30 carry 5 marks each. Use of calculator is not permitted. Class : XIIth M.M. : 70 1. 2. 3. What does q1 + q2 = 0 signify in electrostatics ? 1 In Bohr’s model of
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Kinematics / Projectiles x =?vt ?v = (v + vo)/2 v = vo + at x = vot + ½at2 v2 = vo2 + 2ax y =?vt ?v ’ ½(vo + v) v = vo – gt y = vot – ½gt2 v2= vo2 – 2gy R = (v02/g)sin(2θ) Forces Fnet = ma Fgravity = mg Ffriction ≤ μsN Ffriction = μkN Circular Motion Fnet = mv2/r ac = v2/r v = 2πr/T f = 1/T T = 1/f Gravitation F = GM1M2/R2 g = GM/R2 T2/R3 = 4π2/GM = constant GM = Rv2 Energy W = Fdcosθ KE
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Biology IB Standard Level 2012-2014 Index Topic 1 Topic 2 Topic 3 Topic 4 Topic 5 Topic 6 Topic 7 Topic 8 Topic 9 Topic 10 Topic 11 Statistical analysis Cells The chemistry of life Genetics Ecology and evolution Human health and physiology Nucleic acids and proteins Cell respiration and photosynthesis Plant science Genetics Human health and physiology Topic
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Written by: Sevdenur Tural Explanation: This text is an answer for a SL paper 1 question from May 2007 session. PRICE MECHANISM Explain the signaling and incentive functions of price in a market economy. In free Market economy allocation of resources is left to market forces of supply and demand which also can be referred to as price mechanism. And the prices are determined as a result of the interaction of those market forces. Price mechanism enables the market to move to equilibrium
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a situational attribution‚ which is an assumption that takes into the account a situation the other person was in at the time. However‚ there can also be errors in the way that we process that information. The error that will be explored in this paper is the correspondence bias‚ which is also known as the fundamental attribution error‚ since it is made so often. There are four causes of correspondence bias; firstly‚ observers are often unaware of the situational factors‚ so they cannot adjust their
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technology in investigating one cognitive process-Alzheimer’s disease and memory loss Alzheimer’s disease is a degenerative brain disorder that results in memory loss‚ impaired thinking and personality change. No blood test‚ brain scan‚ physical exam can definitely diagnose Alzheimer’s disease. PET scan detect radioactively tagged glucose that are injected into a patient’s body before the imaging. Glucose enters through blood stream and brain. The most active brain areas need sugar‚ while damaged
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Date Due: 2013.09.23____ Name: Lily Li____ Class: A__ Teacher: ___Mrs Slater___ Purpose: To determine the period and the frequency of a ticker timer. Materials/Apparatus: One ticker timer One carbon paper disc One 1.5+ meter tape One test tape One stop-watch Theory: The recording timer is a device that helps you study motion‚ it is a simple electric device plugged into mains power‚ with a stylus that vibrates up and down. The stylus hits
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