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Phys114 -2013 Sample Problems ____ 1. A bullet is fired through a
Phys114 -2013 Sample Problems ____ 1. A bullet is fired through a

p - Effingham County Schools
p - Effingham County Schools

Ch 09) Static Equilibrium
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... be zero. If the object is not rotating initially (v = 0), it will not start rotating. Equations 9–1 and 9–2 are the only requirements for an object to be in equilibrium. We will mainly consider cases in which the forces all act in a plane (we call it the xy plane). In such cases the torque is calcul ...
Rotational Motion and Angular Momentum
Rotational Motion and Angular Momentum

... Note that the angular acceleration as the girl spins the wheel is small and positive; it takes 5 s to produce an appreciable angular velocity. When she hits the brake, the angular acceleration is large and negative. The angular velocity quickly goes to zero. In both cases, the relationships are anal ...
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Ferrier_kinematics5

7 - Landerson.net
7 - Landerson.net

... When an object spins, it is said to undergo rotational motion. Consider a spinning Ferris wheel. The axis of rotation is the line about which the rotation occurs. In this case, it is a line perpendicular to the side of the Ferris wheel and passing through the wheel’s center. How can we measure the d ...
Physics of the Human Body - ReadingSample - Beck-Shop
Physics of the Human Body - ReadingSample - Beck-Shop

... (with component F ) a distance +r from the z-axis, leads to a torque about the z-axis τy of magnitude rF . This leads to motion in the counterclockwise direction, caused by an angular acceleration that increases the angle θ. This is defined as a positive torque about this axis. A negative torque woul ...
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Chapter 8 Lecture

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... % Calculate the x- and y- components of the first force (270 N) F_x1 = 270 * cos( 55 * pi/180 ); F_y1 = -270 * sin( 55 * pi/180 ); fprintf('\nF_x1 = %8.3f N\t F_y1 = %+9.3f N\n',F_x1,F_y1); % Calculate the x- and y- components of the first force (180 N) F_x2 = -180 * sin( 20 * pi/180 ); F_y2 = -180 ...
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+ v - Purdue Physics

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... Review of the three laws of motion and vector algebra In this course on Engineering Mechanics, we shall be learning about mechanical interaction between bodies. That is we will learn how different bodies apply forces on one another and how they then balance to keep each other in equilibrium. That wi ...
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ROTATIONAL VECTORS AND ANGULAR MOMENTUM

... applied is given as r = 18 cm. The angle between the corresponding radial vector and the muscle force is θ = 180 ° − 15 ° = 165°. The magnitude of the torque is then τ = rF sin θ = ( 0.18 m )( 67 N ) sin165° = 3.1 N ⋅ m By the right-hand rule, we start with our fingers pointing to the right in the d ...
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Rotational Motion and the Law of Gravity`

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... units), are called scalars. Other examples of scalar quantities include the temperature, your weight, or the population of a country; these are scalars because they are completely defined by a single number (with appropriate units). 1a.1.2 Examples of Vector Quantities However, consider a velocity. ...
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AP Physics 1 Curriculum Module 2015 ADA

... Each learning objective in the curriculum framework is linked with one or more science practices that capture important aspects of the work that scientists engage in. For a list of the AP Science Practices, see Appendix A or the curriculum framework in the AP Physics 1 and 2 Course and Exam Descript ...
Ch 7 - Keene ISD
Ch 7 - Keene ISD

... But as they go around one time, the two points move different distances. The outer point B goes around a larger circle. The two points thus have different speeds. We can solve this problem by first finding the angular speed of the disk and then computing the speeds at the two points. ...
CIRCULAR MOTION - Science main page
CIRCULAR MOTION - Science main page

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Chapter 7

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... • A woman tosses a 0.80-kg soft-drink bottle vertically upward to a friend on a balcony above. At the beginning of the toss, her forearm rotates upward from the horizontal so that her hand exerts a 20-N upward force on the bottle. Determine the force that her biceps exerts on her forearm during this ...
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Phy CH 07 circular motion

... along an imaginary line drawn tangent to the car’s circular path. This definition can be applied to any object moving in circular motion. When the tangential speed is constant, the motion is described as uniform circular motion. The tangential speed depends on the distance from the object to the cen ...
Circular Motion Pretest
Circular Motion Pretest

... A) It would increase by a factor of 2. C) It would decrease by a factor of 2. B) It would increase by a factor of 4. D) The speed would not change. ____ 32. How would the speed of Earth’s orbit around the sun change if Earth’s mass increased by 4 times? A) It would increase by a factor of 2. C) It w ...
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Fundamentals Exam - Statics Fundamentals Exam

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Precession



Precession is a change in the orientation of the rotational axis of a rotating body. In an appropriate reference frame it can be defined as a change in the first Euler angle, whereas the third Euler angle defines the rotation itself. In other words, the axis of rotation of a precessing body itself rotates around another axis. A motion in which the second Euler angle changes is called nutation. In physics, there are two types of precession: torque-free and torque-induced.In astronomy, ""precession"" refers to any of several slow changes in an astronomical body's rotational or orbital parameters, and especially to Earth's precession of the equinoxes. (See section Astronomy below.)
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