was cohesive with the observed parameters in the experiment. We also used Hooke’s Law to measure the spring characteristic‚ k‚ spring constant‚ in order to model energy of SHM and determine if energy is conserved via transfer between potential and kinetic. Simple harmonic motion is a mathematical model for many forms periodic motion such as sound waves within a medium‚ a pendulum‚ and electrons in matter. French mathematician Jean Baptiste made the first description of SHM in 1822. Theory
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do in pushing a box with a force of 10 N over a distance of 4.0 m in the direction of the force? (A) 0.4 J (B) 4.0 J (C) 40 J (D) 400 J (E) 4000 J 2. A person pushes a 10 kg box at a constant velocity over a distance of 4 m. The coefficient of kinetic friction between the box and the floor is 0.3. How much work does the person do in pushing the box? (A) 12 J (B) 40 J (C) 75 J (D) 120 J (E) 400 J 3. How much work does the force of gravity do in pulling a 10 kg box down a 30º inclined plane of length
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angle the rope makes with the vertical in equilibrium.( take g=10m/s2‚ neglect mass of rope) Q3. Q4. 4. What is the acceleration of the block and trolley system‚if the coefficient of kinetic friction between the trolley and the surface is 0.04? What is the tension in the string? (neglect mass of the rope‚ take g=10m/s2.) 5. Explain the following with appropriate reasons: (i) What is the source of centripetal force
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Gravity- A force that keeps things on the ground. (your car‚ ect) 2. Inertia- Inertia is what keeps your car moving until another force stops it. 3. Potential Energy- 4. Kinetic Energy- 5. Friction- Friction when you’re driving is what stops your car. When you hit your brakes‚ it stops the tires‚ and that dragging is creating friction. 6. Traction- Its a force that makes heat and helps the tires keep traction on the road. 7. Centrifugal Force- 8. Centripetal Force- 9. Deceleration- Deceleration
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Laboratory V: Conservation of Momentum Problem #1: Perfectly Inelastic Collisions John Greavu April 17‚ 2013 Physics 1301W‚ Professor: Evan Frodermann‚ TA: Mark Pepin Abstract A cart was given an initial velocity toward another stationary cart down a track. The initial velocity of the first cart as well as the masses of both carts was varied throughout multiple trials. Velcro placed on the ends of the carts caused the cars to stick together after colliding. Videos of the collision and the seconds
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Charge * Static electricity : static cling of clothes out of dryer; lightning; * Walk across carpet and touch get a shock touching metal doorknob – friction of shoes against carpet cause you acquire static electric charge * Static charge – electric charge at rest‚ stays on and eventually discharged or lost to other objects/air * Discharge – remove excess static charge so the object is neutral * Static charge last long when air is dry * Electrostatics – study of static electric
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basket to determine launch angle. The majority of our procedure was based on the effect of the trebuchet‚ and being able to correct any deficiencies. Analytical Procedure A trebuchet works by converting stored potential energy into kinetic energy. It accomplishes this by establishing
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GCE ‘O’ Level October/November 2009 Suggested Solutions Physics (5058 /01) # Ans 1 version 1.1 Workings/Remarks C End correction = 0.2cm Actual length of object X = 1.1 + 0.2 = 1.3cm 2 D Force‚ Acceleration‚ Velocity and Displacement are vectors. Work‚ Time and Mass are scalars. 3 D Gradient of speed-time graph = acceleration Changing gradient (curve) = non uniform acceleration Constant gradient (straight line) = uniform acceleration 4 C … 9 dots
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1.On a swept wing aircraft if both wing tip sections lose lift simultaneously the aircraft will a) roll b) pitch nose up c) pitch nose down 2. Lift on a delta wing aircraft a) increases with an increased angle of incidence (angle of attack) b) decreases with an increase in angle of incidence (angle of attack c) does not change with a change in angle of incidence (angle of attack 3. On a straight wing aircraft‚ stall commences at the a) root on a high thickness ratio wing b) tip on
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continues moving until affected by another force. 3. Potential Energy-The energy that a body or system has stored because of its position 4. Kinetic Energy- The energy a body or system has because it is moving. 5. Friction- Resistance encountered by a moving object in contact with another object. 6. Traction-The adhesive friction between a moving object and the surface on which it is moving. Module 4 – Signs‚ Signals & Pavement Markings 1. Explain the purpose of the following
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