Stopping Distance and Reaction Time 20 m s -1 A B O positive direction 40 m The driver in the car B sees the man A 40 m away at time t = 0. The velocity of the car changes according to the graph below. V / m s-1 40 30 20 10 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 t/s V / m s-1 40 30 20 10 0 0.5 1.0 1.5 2.0 2.5 3.0 Will the car B collide with the man A ? 3.5 4.0 4.5 5.0 5.5 t/s
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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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Lab: Conservation of Energy Purpose: To determine and prove that the total energy will remain the same Materials: ● probe ● meter stick ● 2 by 4 wooden block ● shelf (ramp) ● binders (for elevation) Procedure: 1. determine the mass of the block 2. take your ramp and put one side on the table and the other side on the elevated stack of binders 3. set probe at the top of the ramp 4. set the probe to record position and velocity 5. measure the height of the ramp 6. slid
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Moment of Inertia Academic Resource Center What is a Moment of Inertia? • It is a measure of an object’s resistance to changes to its rotation. • Also defined as the capacity of a cross-section to resist bending. • It must be specified with respect to a chosen axis of rotation. • It is usually quantified in m4 or kgm2 Quick Note about Centroids…. • The centroid‚ or center of gravity‚ of any object is the point within that object from which the force of gravity appears to act. •
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CENTRIFUGAL PUMPS Introduction A centrifugal pump is a rotodynamic pump that uses a rotating impeller to create flow by the addition of energy to a fluid. Centrifugal pumps are commonly used to move liquids through piping. The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller‚ flowing radially outward into a diffuser or volute chamber (casing)‚ from where it exits into the downstream piping. Centrifugal pumps are used for
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Module 3: Natural Forces Affecting the Driver Vocabulary: Please define six (6) of the following terms in your own words. Please do not just copy and paste the definition. 1. Inertia- Newton’s law of inertia it says that an object at rest tends to stay at rest and an object in motion tends to stay in motion 2. Potential Energy- Potential energy is the energy that matter has because of the way it’s positioned. 3. Kinetic Energy- Kinetic energy is the energy developed by an object when it is
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Chapter 10 SIMPLE HARMONIC MOTION PREVIEW An object such as a pendulum or a mass 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
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Welcome to Tv6’s special today‚ I am ‚ and I will be your host‚ we will be reviewing 3 special segments that all involve Newton’s 3 laws. Let’s go take a look at the first one. As you just saw in this Polo segment‚ Newton’s first law is one of the reason this game exists‚ if you hit the ball with the polo sick the reason for the ball to continue in motion is because of Newton’s First Law‚ “An object in motion will remain in motion unless an external force acts upon it.” But the reasons behind the
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Newtons third law of motion By: Crismaily Valdez Evaluate Newton Third law of motion work ● For every action there is a equal and opposite reaction. The Introduction in every interaction‚ there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object. Forces always come in pairs - equal
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Did you know Motocross is thought to be the most popular kind of motorcycle racing? It was established in Europe during the 1930’s and over a period of time it became popular all across the world. The game is made up of forty riders that compete on the same track at one time.A pro race will last around thirty minutes and a amateur race will last about 5 minutes. My name is travis staubs and I have raced motocross for eight years of my life. Today I’m going to talk to you about the importance of gearing
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