Physics 31N: Newton’s First Law Item 1 Two forces have the same magnitude F. Part A What is the angle between the two vectors if their sum has a magnitude of 2F? θ = 0∘ Part B What is the angle between the two vectors if their sum has a magnitude of 2√F? θ = 90∘ Part C What is the angle between the two vectors if their sum has a magnitude of zero? θ = 180∘ Item 2 An object is moving in the absence of a net force. Which of the following best describes the object’s motion? *The
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SAMPLE PROBLEMS: 112- Topic 1: ELECTRIC FORCES & ELECTRIC FIELDS. 1) Charges of - 6 and + 4 nC are 3 m apart. Determine the force they exert on each other‚ and the electric field at a point midway between them. |Solution: This is an electrostatics problem (stationary charges). Since the charges|[pic] | |are of opposite sign‚ they will attract each other. The forces are indicated in the|
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universal gravitation About fifty years after Kepler announced the laws now named after him‚ Isaac Newton showed that every particle in the Universe attracts every other with a force which is proportional to the products of their masses and inversely proportional to the square of their separation. Hence: If F is the force due to gravity‚ g the acceleration due to gravity‚ G the Universal Gravitational Constant (6.67x10-11 N.m2/kg2)‚ m the mass and rthe distance between two objects. Then F = G m1 m2 /
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........................................... 9 Abstract The aim of this experiment was to calculate and found out that in what situations the four components of the rig satisfied static balance and dynamic balance. By applying forces balancing equation and vector diagram obtain that‚ when M 1 at bearing 90°‚ M2 at 0°‚ M3 at 197°and M4 at 261.5°static balance archived. For archiving dynamic balancing‚ M1‚ M2‚ M3 and M4 need to stay with the same bearing‚ but also need to have the length of
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Review Acceleration: Magnitude or direction (not units) Direction only Magnitude or direction (not units) Direction only Acceleration means _______________________________________________ What CAN change for a velocity vector? _____________________________________ What IS changing when something moves in a circle? ____________________________ an object in motion continues in constant-velocity motion in a straight line an object in motion continues in constant-velocity
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Define each term. Force: Net Force: Vector: Vector Quantity: Scalar Quantity: Mechanical Equilibrium: Equilibrium Rule: Support Force: Resultant: Check Concepts: 1. What is the difference between force and net force on an object? 2. What is the net force on a box that is being pulled to the right with a force of 40 N and pulled to the left with a force of 30 N? 3. What two quantities are necessary to determine a vector quantity? 4. How does a vector quantity differ
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pitcher’s arm through. The trunk includes the hips…Trunk rotation speed is all about the forward momentum of the body going from the back leg to the front leg and then finally the bracing action of the front leg and hip. Only pitching mechanics where forces are developed and transferred to the arm very late can produce more velocity with less risk of arm injury. The body‚ not the arm‚ produces velocity. This is why 45% of Little League pitchers and 60% of high school pitchers pitch with pain. They
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and Modern Physics. These sections do not apply to AP Physics C students Table of Contents Unit 1: Newtonian Mechanics 1-1. 1-2. 1-3. 1-4. 1-5. 1-6. 1-7. 1-8. 1-9. 1-10. 1-11. Motion in One Dimension Vectors Motion in Two Dimensions Laws of Motion and Force Vectors Applications of Force Work‚ Energy‚ and Power Oscillations Linear Momentum and Collisions Circular Motion and Gravity Introduction to Rotation and Torque Rotation‚ Rolling‚ and Angular Momentum B and C course B and C course B and
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Abstract Rotational dynamics is the study of the many angular equivalents that exist for vector dynamics‚ and how they relate to one another. Rotational dynamics lets us view and consider a completely new set of physical applications including those that involve rotational motion. The purpose of this experiment is to investigate the rotational concepts of vector dynamics‚ and study the relationship between the two quantities by using an Atwood machine‚ that contains
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Physics 110 – Introductory Physics Final exam Name:____________________ June 27 – June29 Instruction: Please answer the 12 questions in the space provided. You the back sparingly. Also use labeled diagrams and equations where appropriate. (Note if you’re looking in the text for an answer and you see a figure with the answer you find‚ you’ll probably want to include a figure with your explanation. Leaving out a figure can leave to an incomplete answer‚ but including one without linking it to
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