Contrary to many people’s thoughts about seasons‚ summer is not due to the Earth being closer to the sun and vice versa for winter (these differences are extremely small). The Earth moves around the sun anti-clockwise in an elliptical orbit‚ with one revolution representing a year (365.256 days). To complete the orbit‚ Earth travels at an approximate speed of 67‚000 miles an hour. While we are orbiting around the Sun‚ we are also rotating around an imaginary axis of the earth‚ with one revolution
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Old Exam Packet – Acct 284 Fall 2009 Exam 1 – Fall 2008 Investing activities: a. involve day to day events like selling goods and services‚ which occur when running a business. b. involve the buying or selling of land‚ buildings‚ equipment‚ and other longer-term investments. c. only involve financial exchanges. d. All of these. Accumulated depreciation: a. is an expense account. b. is a liability account. c. is a regular asset account. d. is an asset contra-account.
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Shakib Sinha HIS 238.01 Mark Chambers May 6th‚ 2016. Wonder of Science Twentieth century science and theology had both produced whereabouts that eroded the older confidence of practitioners from both disciplines. This attrition was strengthened by world events as well. After two world wars and the immediate onset of a global nuclear threat it was not surprising that foundations had been shaken. With little certainty left‚ the world science had helped produce was thrown open to question. That
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Discovery Quick Reference Sheet by Maxwell Cohen Table of functions used in ENGR 132 Type of equations General form The plot that shows your data as linear Linear y=mx + Linear Standard graph b Y vs. X Exponential X y=bemx ln(y) =mx+ln(b) Y = mx+B semilogy mx y=b10 log(y) =mx+log(b) log(Y) vs. X Logarithmic* x=bemy ln(x) =my+ln(b) X = my+B semilogx my x=b10 log(x) =my+log(b) Y vs. log(X) Power y=bxm ln(y)=m*ln(x)+ln(b) Y = mX+B log-log log(Y) vs. log(X) *logarithmic equations with calculations done in
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rectifier is used to rectify the ac output of secondary of 230/12V step down transformer. 2. LITERATURE SURVEY 2.1 WIRELESS HISTORY:- The wireless era was started by two European scientists‚ James Clerk Maxwell and Heinrich Rudolf Hertz. In 1984‚ Maxwell presented the Maxwell’s equations by combining the works of Lorentz‚ Faraday‚ Ampere and Gauss. He predicted the propagation of electromagnet waves in free space at the speed of light. His theory was accepted 20 years later‚ after Hertz validated
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Aristotle attributed the first of what could be called a scientific discussion on magnetism to Thales of Miletus‚ who lived from about 625 BC to about 545 BC.[1] Around the same time‚ in ancient India‚ the Indian surgeon‚ Sushruta‚ was the first to make use of the magnet for surgical purposes.[2] There is some evidence that the first use of magnetic materials for its properties predates this‚ J. B. Carlson suggests that the Olmec might have used hematite as a magnet earlier than 1000BC[3] [4] In
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The St Venant Equations Dr P A Sleigh Dr I M Goodwill School of Civil Engineering‚ University of Leeds March 2000 1 THE DERIVATION OF THE CONTINUITY EQUATION ...........................................................................................1 2 THE DERIVATION OF THE DYNAMIC OR MOMENTUM EQUATION. ...............................................................2 3 THE SOLUTION OF THE ST VENANT EQUATIONS ...................................................................
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like this one: If we want to get an equation that helps us identify the relationship between the Speed and the breaking distance. We can see that the line makes a form of a parabola so we drive it through out calculator to get the following results: We believe that the data is Quadratic because it goes in a parabola: Thus; When: y=ax2 +bx+c a=0.004 b=0.203 c=-6.428 Thus we come up with this equation: Y= (0.004x X2) + 0.203xX -6.428 To make the equation more realistic we can change the X
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Reactions and Equations Science Why should a magnesium ribbon be cleaned before burning in air? Answer Magnesium is very reactive metal. When stored it reacts with oxygen to form a layer magnesium oxide on its surface. This layer of magnesium oxide is quite stable and prevents further reaction of magnesium with oxygen. The magnesium ribbon is cleaned by sand paper to remove this layer so that the underlying metal can be exposed into air. Question 2: Write the balanced equation for the following
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a changing electric current is surrounded by an associated changing magnetic field‚ which in turn generates a changing electrical current in a conductor placed within it‚ which has its own magnetic field…and so on. It is the electromagnetic equivalent of nesting Matryoshka dolls. Thus‚ in the case of electromagnetic induction‚ placing a conductor in the magnetic field surrounding the first current generates the second current. Electromagnetic induction was discovered independently by Michael Faraday
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