'Spring constant' diaporamas de présentation

Force (N)

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Chapter 5

Chapter 5. Work and Energy. Force, displacement ? WORK. Units of work. Work is a scalar, but it can be negative!!!. Example 1 Pulling a Suitcase-on-Wheels Find the work done if the force is 45.0-N, the angle is 50.0 degrees, and the displacement is 75.0 m.

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100 90 80 70 60 50 40 30 20 10 0

Recent exam scores are shown as a histogram ordered simply by student ID number. Exam Scores. 100 90 80 70 60 50 40 30 20 10 0. Student ID number ?. What is the best approximation of the class average on this exam?. A. 80 B. 60 C. 40 D. 20.

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Damped and Forced SHM

Damped and Forced SHM. Physics 202 Professor Lee Carkner Lecture 5. If the amplitude of a linear oscillator is doubled, what happens to the period?. Quartered Halved Stays the same Doubled Quadrupled.

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Energy

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SHM and p Review

SHM and p Review. As a pendulum swings back and forth, where does it have maximum kinetic energy? A. Amplitude position B. Equilibrium position C. Somewhere in between. As a horizontal spring system oscillates back and forth, where does it have maximum kinetic energy?

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Class Happenings

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CHapter11

CHapter11 . Section 2 solving simple harmonics. Objectives. Identify the amplitude of vibration. Recognize the relationship between period and frequency. Calculate the period and frequency of an object vibrating with simple harmonic motion. Amplitude.

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Simple Harmonic Motion

Simple Harmonic Motion. Spring Constant, K. The constant k is called the spring constant. SI unit of k = N/m. HOOKE'S LAW. The restoring force of an ideal spring is given by,.

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Simple Harmonic Motion

Simple Harmonic Motion. Spring Constant, K. The constant k is called the spring constant. SI unit of k = N/m. HOOKE'S LAW. The restoring force of an ideal spring is given by,.

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Announcements

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PHY101 Quiz#3

PHY101 Quiz#3. 1. A block is suspended from the ceiling by a long, thin strip of tungsten metal. The strip behaves as a spring. To produce a 0.25 m horizontal deflection of the block, a force of 6.5 N is required. Calculate the spring constant for the tungsten strip. A) 0.038 N/m

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Work and Mechanical Energy

Work and Mechanical Energy. Formula and Transitions. Work. Formula: _______ , where ? is the angle between the force and the direction of motion: E.g. A box on a frictionless surface is pushed with a force of 13N for a distance of 3.5 m. How much work was done: W = . Work (cont.).

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Harmonic Motion

Harmonic Motion. Circular motion can be described by components. x = r cos q y = r sin q For uniform circular motion the angle is related to the angular velocity. q = w t. The motion can be described as a function of time. x = r cos w t y = r sin w t. Vector Components.

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DUAL-CONTROL MOLECULAR SWITCHES FOR BIOMEDICAL APPLICATIONS

DUAL-CONTROL MOLECULAR SWITCHES FOR BIOMEDICAL APPLICATIONS . Michele Zanoni 1 , Amy Gelmi 2 , Paul Molino 2 , Robert Byrne 1 , Michael Higgins 2 , Klaudia Wagner 2 , Sanjeev Gambhir 2 , Gordon Wallace 2 , David L. Officer 2 and Dermot Diamond 1 .

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Chapter 10.1 Homework

Chapter 10.1 Homework. A hand exerciser utilizes a coiled spring. A force of 89.0 N is required to compress the spring by 0.0191 m. Determine the force needed to compress the spring by 0.0508 m.

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