constant‚ k = 1.38 × 10 –23 J K –1 gravitational constant‚ G = 6.67 × 10 –11 N m 2 kg –2 acceleration of free fall‚ g = 9.81 m s –2 © UCLES 2006 9702/02/M/J/06 3 Formulae uniformly accelerated motion‚ s = ut + at 2 v 2 = u 2 + 2as work done on/by a gas‚ W = p ⌬V gravitational potential‚ φ = – Gm simple harmonic motion‚ a =– velocity of particle in s.h.m.‚ v = v0 cos t v = ± √(x 20 – x 2)
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the ride which are most responsible for these sensations of weightlessness and heaviness are the clothoid loops. The explanation for the various sensations experienced on a roller coaster loop are associated with Newton’s laws of motion and the physics of circular motion.
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c. How far down is the water surface? 4. Aunt Minnie didn’t get her wish‚ so she goes to a deeper wishing well and throws a penny straight down into it at 10 m/s. How far does this penny go in 3 seconds? 75 m CONCEPTUAL PHYSICS Chapter 4 Linear Motion 13 Straight Up and Down The sketch is similar to Figure 4.9 in the textbook. Assume negligible air resistance and g = 10 m/s2. • Table 1 shows the velocity data of the figure for t = 0 to t = 8 seconds. Complete the table. Distances traveled are
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way that gymnasts bodies do. It is nothing but physics. Angular momentum is the main physics concept used in gymnastics‚ and this can be seen in events like the vault and giant bar. Angular momentum is the term describing the quantity of angular motion possessed by the gymnast. It is also the product of angular velocity. It is made up of the sum of the angular momentum of the body’s segments. The variables that influence angular momentum are the rotational speed of the gymnast‚ point/center of rotation
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of the page 7. Determine the magnetic field strength acting on a positron travelling at 7.31 x 107 m/s experiences a magnetic force of 5.38 x 10-13 N. [0.0460T] The magnetic field strength is 0.0460T. 8. A beam of alpha particles is accelerated across a potential difference of 7.50 KV. They are then passed perpendicularly through a magnetic field and turn a circle with a radius of 15.1 cm. Determine the magnetic field strength. [0.117 T] The magnetic field strength is 0.117 T.
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ATOMIC PHYSICS The nuclear atom All matter is made up of atoms which consist of a central nucleus‚ surrounded by electrons. Inside the nucleus are protons and neutrons. Particle Relative mass Charge Location Proton 1840 + Nucleus Neutron 1840 0 Nucleus Electron 1 - Outside nucleus Proton or atomic number (Z) This is the total number of protons in the nucleus of an atom. Nucleon or mass number (A) This is the total number of protons and neutrons in the nucleus of an atom. Note: a nucleon
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is displaced 2 cm from its position of rest at right angles to the original direction of the string and then released with zero velocity. Applying the equation ∂2u∂x2=1c2∙∂2u∂t2 with c2=1‚ determine the subsequent motion ux‚t. 3. One end A of an insulated metal bar AB of length 2 m is kept at 0°C while the other end B is maintained at 50°C until a steady state of temperature along the bar is achieved. At t=0‚ the end B is suddenly reduced
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Gravitation …………………. 61 3. Direct Current ………………….. 71 4. Electrostatics …………………. 90 5. Simple Harmonic Motion ……. 116 6. Waves ………………………… 128 7. Magnetism …………………. 156 8. Electromagnetic Induction …… 162 9. Atomic Physics …………. 184 10. Answers …………. 194 MECHANICS KINEMATICS of LINEAR MOTION Uncertainties of Measurement Power of Ten | Prefix | Abbreviation | 10-18 | atto | a | 10-15 | femto | f | 10-12 | pico
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Preliminary Questions 1. When you push on an object‚ the magnitude of the force on the object directly affects it’s motion. If you push harder on the object‚ it’s motion is larger. 2. If we have a bowling ball‚ and a baseball each suspended from a different rope‚ and hit each ball with a full swing of a baseball bat‚ the ball that will have the greatest amount of change in it’s motion will be the baseball. This is true because the baseball has a smaller mass than a bowling ball‚ giving the baseball
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orce. 17. Scalars and Vectors. 18. Representation of Vector Quantities. 19. Addition of Vectors. 20. Subtraction of Vectors. 2. Kinematics of Motion ...823 1. Introduction. 2. Plane Motion. 3. Rectilinear Motion. 4. Curvilinear Motion. 5. Linear Displacement. 6. Linear Velocity. 7. Linear Acceleration. 8. Equations of Linear Motion. 9. Graphical Representation of Displacement with respect to Time. 10. Graphical Representation of Velocity with respect to Time. 11. Graphical Representation
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