centrifugal pump converts the input power to kinetic energy in the liquid by accelerating the liquid by a revolving device - an impeller. The most common type is the volute pump. Fluid enters the pump through the eye of the impeller which rotates at high speed. The fluid is accelerated radially outward from the pump chasing. A vacuum is created at the impellers eye that continuously draws more fluid into the pump. The energy created by the pump is kinetic energy according the Bernoulli Equation.
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force intended to cause a change in the object’s state of motion or rest. Friction: Friction is a force that resists the relative motion of objects in contact. It is a force that we experience every day and every moment of our lives. Momentum: Momentum is the total quantity of force or speed of a moving object. For example‚ a car gained momentum going downhill‚ or a car lost momentum going uphill. Kinetic
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Summary The objectives of the experiment is to study the validity of the Bernoulli equation and to determine the coefficient of discharge‚ Cd‚ by calibrating the venturi tube as a flow meter. To investigate the validity of the Bernoulli equation‚ the static pressure is taken at each tapping and the total head is determined for the maximum difference setting. The velocity head is calculated using the Bernoulli equation. To calculate Cd‚ the volumetric flow rate is measured for the maximum and minimum
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pump systems 2. Three important characteristics of a pump system: pressure‚ friction and flow 3. What is friction in a pump system 4. Energy and head in pump systems 5. Static head 6. Flow rate depends on elevation difference or static head 7. Flow rate depends on friction 8. How does a centrifugal pump produce pressure 9. What is total head 10 What is the relationship between head and total head 11. How to determine friction head 12. The performance or characteristic curve of the pump 13. How to select
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particles do not change. The moment of inertia of a single particle I can be expressed as [pic] where m = the mass of the particle‚ and r = the shortest distance from the axis of rotation to the particle. [pic] KINETIC ENERGY OF ROTATION AND MOMENT OF INERTIA: The kinetic energy of system of particles of masses m1‚ m2…….mn is defined as K.E = [pic] = [pic] Substituting v = (r [where ( is the angular speed of the rotating body]‚ we have K.E = [pic] in which ( is the same
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SUPPORT FOR RIGID BODIES SUBJECTED TO THREE DIMENSIONAL FORCE SYSTEM The first step in solving three-dimensional equilibrium problems‚ as in the case of two dimensions‚ is to draw a free-body diagram of the body (or group of bodies considered as a system).. The reactive forces and couple moments acting at various types of supports and connections‚ when the members are viewed in three dimensions‚ are listed in Table 5–2. It is important to recognize the symbols used to represent each of these supports
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no one around to help‚ so you attach an ideal pulley to the box and a massless rope to the ceiling‚ which you wrap around the pulley. You pull up on the rope to lift the box. Use for the magnitude of the acceleration due to gravity and neglect friction forces. Part A What is the
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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 in sections 1‚ 2‚ 3‚ and 4 of chapter 10 of the textbook is included on the AP Physics B exam. QUICK REFERENCE Important Terms amplitude maximum displacement from equilibrium position;
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GPE to Kinetic energy. The car is at the peak. The energy transfers from Kinetic energy to GPE. The car starts to go down. The energy transfers again from GPE to Kinetic energy. There is no kinetic energy when the car is still at the bottom‚ as the energy has converted to GPE. The higher the lift‚ the more potential energy gained by the car. Not all the energy is converted or transferred as GPE and kinetic energy. Some of the energy is transferred as thermal energy and sound energy. Kinetic energy
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Every aspect of basketball has some type of force working upon it. For example‚ without friction a basketball player would be unable to stop because inertia states that objects in motion tend to stay in motion. Without friction acting upon the player‚ there is no force to stop him‚ until he hits a wall that is. With this information you can come to the conclusion that without forces‚ there would be no game of basketball. However‚ what exactly is a force? Webster’s dictionary defines force as a push
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