Define friction‚ explain how it influenced your model car‚ and state where the friction came from • Friction: Frictional force is the force exerted by a surface as an object moves across it. The frictional force in this experiment is caused by the wheels scooting across the floor with the downward force of the wind from the balloon thrusting it forward. •Define inertia and describe how your model car demonstrated inertia both before and after you released the end of the straw •Besides friction‚ explain
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pump has special design that the concrete mixer pump combined concrete mixer and pump into one machine so that it is suitable operated by one staff. Our concrete mixer pump price is competitive. Because of wearing parts‚ such as friction resistance board and the friction resistance loop. All have so high durable capability that reduces the cost. Although this is only a part of the features about the concrete mixer pump‚ it is still very important for improving the working efficiency. If you are interested
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4756x107 and 2.7805x107 respectively. From these numbers‚ it was observed that at 2000rpm‚ efficiency was greatest‚ recording 50.3% efficiency and this was possibly due to the smaller turbulent flow and thus having a smaller resistance due to the friction coefficient of the pipe. The predicted hydraulic power and head for the 228mm diameter impeller was found to be 2897.04W and 252.7kPa respectively. However‚ the prediction is only theoretical and might not have the same result if carried out experimentally
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A 22yo. client complains of low back pain on their right side. They describe the pain as a dull ache while standing or sitting that worsens while laying and can become a shooting pain upon standing from a seated or laying position. The pain can be felt on their left side while bending‚ twisting‚ or walking. Client states that this began happening 4 months ago and has been getting progressively worse. They state that they have had no prior issues and have never had an injury or surgery that could
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is … positive negative zero 5 Work: Example Fapp FN Direction of motion Friction‚ Ffr FW Negative work reduces the kinetic energy of a system. Friction ALWAYS does negative work Gravity does zero work ONLY if the motion is parallel to the/along a horizontal surface 6 Work-Kinetic energy relation Wtot = !KE = K f " K i Due to APPLIED FORCES (e.g. elastic force (following Hooke’s law)‚ friction‚ gravity‚ tension‚ normal force‚ etc.) For a particle in Linear motion 1 2
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part also a stationary part by a ring shaped objects which again reduces friction. Ball bearings are used for many different things like hard discs drives and electric fans. They are made of four major parts. The four parts is the outer ring‚ a cage‚ steel balls‚ and an inner ring. The cage is used to keep the balls from hitting each other. Leonardo Da Vinci created ball bearings around the 1500’s to lower the amount of friction against axles for horse drawn carts. For over 500 year ball bearings have
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3.50 m/s. The coefficient of kinetic friction between the box and the surface is 0.20. a. What horizontal force must be applied by the worker to maintain the motion? b. If the force calculated in part a is removed‚ how far does the box slide before coming to rest? 3. 4. In physics lab experiment‚ a 6.00-kgbox is pushed across a flat table by a horizontal force F. a. If the box is moving at a constant speed of 0.350 m/s and the coefficient of kinetic friction is 0.12‚ what is the magnitude of F? b
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into on-centre and off-centre sections. Steering effort on parking and on driving manoeuvre is generated by different procedures. In a parking manoeuvre‚ steering effort is developed due to the elastic deformation of the tire tread due to the friction between tire surface and ground. Selfaligning moment‚ couple due to side force and pneumatic trail‚ is the main parameter in a
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sliding friction. If the driver brakes very hard it can occur that the maximum static friction is surpassed and the wheels lose their grip and begin sliding The amount of traction which can be obtained for an auto tire is determined by the coefficient of static friction between the tire and the road. If the wheel is locked and sliding‚ the force of friction is determined by the coefficient of kinetic friction. A tire that is just on the verge of slipping produces more friction with respect
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What is Lubrication: Lubrication is a process or technique when a component is having been made smooth and slippery by the application of Lubricant. What is Lubricant: A lubricant is a substance which applies between two moving surfaces to reduce friction between them. E.g. Motor oil‚ Greases‚ Graphite‚ Glasses. Three different types of lubricant and the purpose they serve: Glasses: Glass is used as a Lubricant for having high viscosity. Usually glass is solid but in high temperature it becomes
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