12.32 gms SrCO3‚ 9.48 gms TiO2) are milled with help of two WC balls of diameter 20 mm. The samples were taken at different intervals for structural characterization by X-Ray Diffraction (XRD)‚ Field Emission Scanning Electron Microscopy (FESEM)‚ Particle Size Analysis and Dielectric Property Measurement. The X-ray diffraction patterns of the milled mixture powders‚ both calcined (1200° C) and uncalcined were recorded in X’pert Pro MPD diffractometer (PANalytical) using X’Celerator‚ which operates
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The difference between speed and velocity is that Velocity also includes a direction the acceleration of gravity on earth is approximately 10m/s2 if you drops rock from a tall building‚ about how fast will it be falling after 3 seconds? 30m/s Momentum is defined as Mass time’s velocity suppose you live on the moon. Which of the following would be true? Your weight would be less than your weight on Earth‚ but your mass would be the same as it is on Earth. In which of the following
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changing in a regular way while energy is travelling/transferred along. In water waves particles of water move up and down while energy is transferred horizontally. Waves show reflection‚ refraction‚ diffraction‚ and interference but the last two are the defining characteristics of waves. If diffraction and interference are observed‚ waves are involved. Waves do not have mass or charge. Photons All electromagnetic radiation consists of photons. A photon is a packet of energy‚ or a quantum of
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developed by Sir Isaac Newton. Newton’s theory remained in force for more than 100 years and took precedence overHuygens’ wave front theory‚ partly because of Newton’s great prestige. However when the corpuscular theory failed to adequately explain the diffraction‚ interference and polarization of light it was abandoned in favour of Huygen’s wave theory.[1] Newton’s corpuscular theory was an elaboration of his view of reality as interactions of material points through forces. Note Albert Einstein’s description
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Rosalind Franklin created the A and B forms of DNA. She developed a method in seperating the two forms of DNA. Franklin provided the first pure enough DNA crystals to reveal interpretable diffraction patterenWWWWWWWWWWWW WWWWWWWWWs. She discovered the helical structure of DNA has two strands. She was missing an important piece to her structure.The missing piece was how the bases paired on the inside of the helix‚ and the secret of heredity itself (Ardell 1). Watson and Crick were
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There are two contrasting views that light either consists of particles or waves. Light is a perplexing phenomenon puzzled by Ancient Greeks and scientists for years. Even Issac Newton developed incorrect theories on light‚ when he was the inventor and genius behind physics. It has been proved that light can be both a particle and a wave. Human eyes collect light that is reflected from a source. For example‚ the light from a pencil comes from the source of light in the sun and travels to the pencil
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In "Dover Beach‚" Matthew Arnold creates a monologue that shows how perceptions can be misleading. The theme of illusion versus reality in "Dover Beach" reflects the speaker’s awareness of the incompatibility between what is perceived and what truly is real. Arnold conveys the theme of "Dover Beach" through three essential developments. First‚ he uses visual imagery. Second‚ he uses sound (aural) imagery. Third‚ he uses rhythm and metric. These mechanics alone do not explain why illusion and reality
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Higher Physics: Mechanics and the properties of matter Summary Notes Vectors Page 2 Equations of motion Page 7 Newton’s Second Law‚ energy and Power Page 14 Momentum and Impulse Page 18 Density and pressure Page 26 Gas Laws Page 30 Vectors A physical quantity is a measurable quantity. Physics is about the relationships between physical quantities. There are two kinds of physical quantity. One consists of a number of units‚ the other consists of a number
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Peter Debye and his Contributions to Chemistry Abstract Dutch physicist Peter Debye studied under Arnold Sommerfeld‚ and developed several approaches using induced dipole moments and x-ray diffraction to study molecular structures. In 1912 he exhibited the Debye equation for dipole moments‚ a method to determine bond angles and the degree of polarity of covalent bonds‚ which allows the spatial configuration of molecules to be deduced with far greater accuracy than had previously
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2015 JC2 H2 Physics June Revision Package Measurement Techniques J02/P2/Q1 1. Make reasonable estimates of the following quantities. (a) mass of an apple [1] (b) number of joules of energy in 1 kilowatt-hour [1] (c) wavelength of red light in a vacuum [1] (d) pressure due to a depth of 10 m of water [1] J02/P2/Q2 2. A student uses a micrometer screw gauge to measure the diameter of a wire. He fails to notice that‚ with the gauge fully closed‚ the reading is not zero. (a) State and explain
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