Determination of the Acceleration Due to Gravity By A Good Student Abstract The acceleration due to gravity‚ g‚ was determined by dropping a metal bearing and measuring the free-fall time with a pendulum of known period. The measured value is 9.706 m/s2 with a standard deviation of 0.0317‚ which does not fall within the range of known terrestrial values. Centrifugal forces and altitude variations cannot account for the discrepancy. The calculation is very sensitive to the measured drop
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1) The difference between interpersonal and mass communication is that mass communication is a linear process depends on mechanical or electronically mass medium like television‚ internet‚ radio... mass communication address a large and diverse audience‚ but interpersonal communication is a communication process between a few members or two members a sender and a receiver‚ in interpersonal communication there is a role-taking and a feedback‚ but in mass communication there is a lack of immediate
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ROTATIONAL KINEMATICS‚ MOMENT OF INERTIA | 1. A child is pushing a merry-go-round. The angle through the merry-go-round has turned varies with time according to θ(t) = γt + βt3‚ where γ = 0.400 rad/s and β = 0.0120 rad/s3. a. Calculate the angular acceleration as a function of time. b. What is the initial value of the angular velocity? c. Calculate the instantaneous value of the angular velocity at t =5.00 s and the average angular velocity for the time interval t = 0 to t = 5.00 s.
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In the short story‚ Everyday Use by Alice Walker‚ we get a look in to the lives of an African American family living in the south. The plot of the story is simple enough‚ a woman who is to make a decision of to whom she will give away two quilts. The oldest daughter‚ Dee‚ sees the quilts as cultural fashion while Maggie‚ the younger daughter‚ sees them as precious pieces of the people in her past. Walker illustrates an absolute contrast between the two daughters not only in their appearance but
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MICRO-ECONOMICS ASSIGNMENT Q(1) Explain and illustrate with diagrams the differences between diminishing marginal returns and decreasing economies of scale and cite causes and examples. Ans. The law of diminishing returns is also called the law of variable proportion‚ as the proportions of each factor of production employed keep changing as more of one factor is added. The law of diminishing returns does not imply that adding more of a factor will decrease the total production‚ a condition
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The point where the centripetal acceleration is provided completely by gravity is when the centripetal acceleration is equal to the gravity. This happens at the point where h=r/2. As the truck moves from point A to point B‚ it would have decreased in height by r. Applying this again to our equation‚ we get; Hence‚ Using this in our g-force equation‚ we get; And so the rider experiences an additional 2g of centripetal force from that experienced at the top. Later‚ as the tuck moves to point
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same height‚ fall at the same velocity. Apparatus - 2 Marbles of different mass‚ one steel and one nylon - Dropping Mechanism with a lever to hold the marble and pull for drop - Bee Spi (measures velocity in kilometers per hour.) - Box to catch the marble on the way down Procedure The dropping mechanism was set up‚ with the BeeSpi attached to it at 26.5” from the lever that drops it so that the marble would fall through it‚ therefore recording the velocity in km/h. There was also a box
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find out where the killer works and lives so they can prove to the police the diary is for real." http://www.oppapers.com/essays/Accelerat… You have to join them to read the full essays. eng1honors.wikispaces.com/file/view/Su… Preview of Acceleration – Graham McNamee "In this suspense story‚ the main character Duncan is haunted by the fact that he was unable to save a drowning girl one fateful afternoon the previous September. This summer‚ he has a job working underground at the Toronto subway
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CBSE Class IX Term I Summative assessment I Sample paper 3 SECTION A 1. Breathing on a mirror turns mirror foggy‚ what phenomenon is responsible for this? [1] 2. What is the major function of cell wall in plant cell? [1] 3. When a carpet is beaten with a stick‚ dirt comes out of it. Why? [1] 4. (a) Name the two factors on which the buoyant force depends. [2] (b) State the relationship between the buoyant force on an object and weight of the liquid displaced by it. 5. State any two reasons for
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Lab Conclusion When comparing the average speed results from part two of the lab and the definition of acceleration‚ you find similarities between the two. First‚ average speed is distance divided by time‚ and we use it to describe the motion of an object moving at changing speeds. We can see this from our lab results from the average speed of the marble traveling down the ramp‚ because it picks up speed. When the marble is released at the top of the ramp‚ the ball doesn’t have the same momentum
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