1 1 2 3 C Motion I 7 (a) From 1 January 2009 to 10 January 2009‚ the watch runs slower than the actual time by 9 minutes. Therefore‚ when the actual time is 2:00 pm on 10 January 2009‚ the time shown on the watch should be 1:51 pm on 10 January 2009. Practice 1.1 (p. 6) D (a) Possible percentage error 10 −6 = × 100% 24 × 3600 = 1.16 × 10 % 1 (b) = 1 000 000 days 10 −6 –9 It would take 1 000 000 days to be in error by 1 s. (b) Percentage error 9 = × 100% 9 × 24 × 60 = 6.94 × 10–2%
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physics. According to Physics‚ the physical laws of matter‚ energy and the fundamental forces of nature govern the interactions between particles and physical entities (such as planets‚ molecules‚ atoms or the subatomic particles). Some of the basic pursuits of physics are describing the nature‚ measuring and quantifying of bodies and their motion‚ dynamics and so on. But what I want to touch up on is mass‚ force and weight. Considering that I am a Construction Management major‚ I believe these are
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Circular Motion Uniform circular motion is the movement of an object or particle trajectory at a constant speed around a circle with a fixed radius. The fixed radius‚ r‚ is the position of an object in uniform or circular motion relative to to the center of the circle. The length of the position vector of the circle does not change but its direction does as the object follows its circular path. In order to find the object’s velocity‚ one needs to find its displacement vector over the specific
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on a spring is oscillating or vibrating if it is moving in a repeated path at regular time intervals. We call this type of motion harmonic motion. For an object to continue oscillating there must be a restoring force continually trying to restore it to its equilibrium position. For‚ the force exerted by an ideal spring obeys Hooke’s law. As an object in simple harmonic motion oscillates‚ its energy is repeatedly converted from potential energy to kinetic energy‚ and vice – versa. The content contained
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just did it. I care about these laws because I’ve learned so much that I never really understood nor knew. Newton’s first law states “objects at rest will stay at rest unless an outside force acts on it and an object in motion will continue to stay in motion at constant speed in a straight line unless an outside force acts on it.” This means exactly what it says. If a ball is kicked it’ll go in a straight line until it hits a wall or someone stops it. If a ball is on the ground not moving it will stay
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Track Apparatus‚ Pulley‚ Weight hanger‚ Slotted Masses: 2pcs. 5 grams‚ 2 pcs. 10 grams‚ 1pc. 100 grams; string IV. Data and Results: Part1. Constant Mass and Increasing Net Force m1 (g)m2 (g)M(g)a(m/s2 )450150.32599.8609.80.612250.53859.8600.000350.75959.8750.749450.96109.9610.816551.180010.180.388 Part2. Constant Net Force and Increasing Mass m1 (g)m2 (g)M(g)a(m/s2 )gexpt’l%error257750.31959.9059.81.07106250.29559.7520.48988750.27709.6951.07009250.26309.7310.78409750.25159.8100.1020 V. Computation
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Today I will be talking about paper airplanes and what type of paper airplane flies the farthest also which one stays aloft the longest. Some of the topics I plan to discuss involve aerodynamics‚ drag‚ shape‚ size‚ forces‚ and gravity. Drag is the force of flight that pushes an airplane opposite to the direction it is moving. The biggest types of drag are friction‚ when air rubs against the surface‚ and difference in air pressure. Think of a drag like swimming treading through the water you can’t
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Unit 2: The Ordered Universe Assignment 1. Why was the Ptolemaic system accepted as an explanation of celestial motion for over a thousand years? What did it explain? What system challenged the idea that Earth was the center of the universe? The Ptolemaic system says that the Earth is the center of the universe. Everything else surrounded the Earth. The Copernican system challenged the belief that Earth was the center of the universe. The major difference between the Ptolemaic and Copernican universes
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BA-3-053‚ ext 7242 Email: Zolman@uniten.edu.my Course Description : The course begins by reviewing fundamental concepts and principles of statics‚ vectors and vector algebra. This basic knowledge gained will help to enhance the understanding of force analysis on particles in equilibrium and the principle of moment. This will eventually reinforced the studies on structural analysis with different loading conditions. The study on the characteristics of dry friction and belt friction will complete
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Activity 1: X-Gliders Lesson Objective: Campers will learn about the forces of flight‚ weight and balance when they construct a glider. As they improve the design of their glider they will understand that a variable is a single change in the engineering. Set-Up: Each student will need two foam trays‚ a plastic knife and an x-glider template. Materials for weight and balance can be distributed at a communal table. Demo and discussion: Start off the lesson by asking your campers‚ “What are gliders
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