Send Send in in the the SWOT SWOT Team! Team! Strengths: Strengths: Traits Traits that that give give you you aa leg leg up. up. Weaknesses: Weaknesses: Traits Traits that that work work against against you you now. now. Opportunities: Opportunities: Conditions Conditions that that work work in in your your favor. favor. Threats: Threats: Conditions Conditions that that could could have have bad bad effects. effects. What What kinds kinds of of forces forces will will impact impact your your potential potential career? career? Internal—forces Internal—forces inside inside you you External—forces External—forces outside outside you you Positive—forces Positive—forces helping helping your your goals goals Negative—forces Negative—forces working working against against you you © 2010 Wadsworth, Cengage Learning p. 278
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van der Waals Forces   Haloalkanes are associated in the liquid state by van der Waals forces van der Waals forces: a group intermolecular attractive forces including • dipole-dipole forces • dipole-induced dipole forces • induced dipole-induced dipole (dispersion) forces  van der Waals forces pull molecules together • as molecules are brought closer and closer, van der Waals attractive forces are overcome by repulsive forces between electron clouds of adjacent atoms or molecules 8-8
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7.4 Proof of Lagrange’s Equations with Constraints      We are now ready to prove Lagrange’s equations for any holonomic system. We will prove it for one particle, but it can easily be extended to an arbitrary number (see Prob. 7.13). Let’s take a particle constrained to move on a surface, so that it has two degrees of freedom and hence two independent generalized coordinates q1 and q2. There are two types of forces on the particle—forces of constraint (whatever forces are keeping the particle constrained), which we’ll denote Fcstr, and all other forces F. The key is that the forces Fcstr can do no work on the particle. Note that the Fcstr forces may not be conservative, but this does not matter, since the Lagrange equations are not going to include them. We shall assume that the non-constraint forces do satisfy the second condition, at least, of conservative forces, i.e. that they can be derived from the gradient of Fa potential U (r, t ).energy, U(r, t): If all forces F are really conservative, then they do not depend on t, but we do not need to assume this. The total force on the particle is Ftot = Fcstr + F. October 26, 2010
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I. Electrostatic Forces • Every molecule in a sample of matter experiences two types of electrostatic forces.  Intramolecular forces: the forces that exist within the molecule (bonding). These forces determine chemical reactivity.  Intermolecular forces: the forces that exist between molecules. These forces determine physical properties.
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I. Electrostatic Forces • Every molecule in a sample of matter experiences two types of electrostatic forces.  Intramolecular forces: the forces that exist within the molecule (bonding). These forces determine chemical reactivity.  Intermolecular forces: attractive forces that exist between molecules. These forces determine physical properties.
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Parallel forces on a plane Like parallel forces: Coplanar parallel forces when act in the same direction Unlike parallel forces: Coplanar parallel forces when act in different direction Resultant of like parallel forces: Let P and Q are two like parallel forces act at points A and B. R=P+Q Resultant of unlike parallel forces: R=P-Q R is in the direction of the force having greater magnitude.
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Situation: Situation: A. Enemy Forces Intel reports a hasty bunker has been set up to the front of the Enemy main defensive area to our front. The bunker is manned by 2-4 lightly armed soldiers who will defend strongly, possibly with a MG. B. Friendly Forces (1) Higher Unit: A Company attacks to seize OBJ Buford NLT (H+80) to facilitate maneuver of follow on units. (2) Right Unit mission: 2nd Platoon, A Company, attacks along AXIS HETH to secure OBJ Shoes NLT (H+60) in order to prevent the detection of the main attack. (3) Left Unit mission: 3rd Platoon, A Company, destroy enemy reinforced squad along left flank to protect main effort’s attack NLT (H+70). C. Attachments and Detachments: None A. Enemy Forces Intel reports a hasty bunker has been set up to the front of the Enemy main defensive area to our front. The bunker is manned by 2-4 lightly armed soldiers who will defend strongly, possibly with a MG. Mission: B. Friendly Forces (1) Higher Unit 1st PLT attacks along AXIS Carlisle to seize OBJ Culp vic ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. (2) Right Unit mission: 2nd Squad will move along AXIS Carlisle and block enemy forces to secure right flank of ME. (3) Left Unit mission: 3rd Squad C. Attachments and Detachments: None Mission: 1st Squad the ME, attacks along AXIS Carlisle to seize OBJ Culp vic. ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. 1 PLT attacks along AXIS Carlisle to seize OBJ Culp vic ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. st Execution: Execution: A. (1) A. (1) Concept of the operation: Cross the LD (5 meters to front) at (H+45) in platoon column , (Your Squad), the ME, leads along AXIS Carlisle to attack to destroy enemy forces on OBJ Culp by (H+80). 2nd Squad follows to secure right flank in support of the main effort. 3rd Squad is in Reserve. (2) Fires: 1st in POF for CO Mortars. ME has priority within the platoon. (3) Task to maneuver units: 1st Squad the ME, attacks along AXIS Carlisle to seize OBJ Culp vic. ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. Cross the LD (H+45). Knock out any bunkers on OBJ Culp NLT (H+80). 2nd Squad will cross the LD(H+45) and move along AXIS Carlisle and block enemy forces to secure right flank of ME. 3rd Squad reserve, be prepared to destroy bunkers on OBJ Culp. B. Coordinating Instructions: (4) PIR: Weapons, Communication equipment, Suicide vests, location and disposition on the enemy main position. (5) Reports: Crossing LD, enemy contact, captured EPW, ACE after consolidation, and SITREPs as needed. (2) (3) Concept of the operation: Cross the LD (5 meters to front) at (H+45) in Squad column fire team wedge, Alpha team leads along AXIS Carlisle to attack to destroy enemy forces on OBJ Culp by (H+80) Bravo team follows and will maneuver o/o once on OBJ Culp. Fires: 1st in POF for CO Mortars. We are the ME and have priority within the platoon. Task to maneuver units: Alpha team, attacks along AXIS Carlisle to seize OBJ Culp and Knock out any bunkers on OBJ Culp NLT (H+80). Alpha team will provide Pace and compass team, EPW search, and COB teams. Bravo team you will maneuver towards any bunkers o/o and provide bunker clearing team and primary aid & litter.
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Situation: Situation: A. Enemy Forces Intel reports a hasty bunker has been set up to the front of the Enemy main defensive area to our front. The bunker is manned by 2-4 lightly armed soldiers who will defend strongly, possibly with a MG. B. Friendly Forces (1) Higher Unit: A Company attacks to seize OBJ Buford NLT (H+80) to facilitate maneuver of follow on units. (2) Right Unit mission: 2nd Platoon, A Company, attacks along AXIS HETH to secure OBJ Shoes NLT (H+60) in order to prevent the detection of the main attack. (3) Left Unit mission: 3rd Platoon, A Company, destroy enemy reinforced squad along left flank to protect main effort’s attack NLT (H+70). C. Attachments and Detachments: None A. Enemy Forces Intel reports a hasty bunker has been set up to the front of the Enemy main defensive area to our front. The bunker is manned by 2-4 lightly armed soldiers who will defend strongly, possibly with a MG. Mission: B. Friendly Forces (1) Higher Unit 1st PLT attacks along AXIS Carlisle to seize OBJ Culp vic ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. (2) Right Unit mission: 2nd Squad will move along AXIS Carlisle and block enemy forces to secure right flank of ME. (3) Left Unit mission: 3rd Squad C. Attachments and Detachments: None Mission: 1st Squad the ME, attacks along AXIS Carlisle to seize OBJ Culp vic. ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. 1 PLT attacks along AXIS Carlisle to seize OBJ Culp vic ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. st Execution: Execution: A. (1) A. (1) Concept of the operation: Cross the LD (5 meters to front) at (H+45) in platoon column , (Your Squad), the ME, leads along AXIS Carlisle to attack to destroy enemy forces on OBJ Culp by (H+80). 2nd Squad follows to secure right flank in support of the main effort. 3rd Squad is in Reserve. (2) Fires: 1st in POF for CO Mortars. ME has priority within the platoon. (3) Task to maneuver units: 1st Squad the ME, attacks along AXIS Carlisle to seize OBJ Culp vic. ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. Cross the LD (H+45). Knock out any bunkers on OBJ Culp NLT (H+80). 2nd Squad will cross the LD(H+45) and move along AXIS Carlisle and block enemy forces to secure right flank of ME. 3rd Squad reserve, be prepared to destroy bunkers on OBJ Culp. B. Coordinating Instructions: (4) PIR: Weapons, Communication equipment, Suicide vests, location and disposition on the enemy main position. (5) Reports: Crossing LD, enemy contact, captured EPW, ACE after consolidation, and SITREPs as needed. Concept of the operation: Cross the LD (5 meters to front) at (H+45) in Squad column fire team wedge, Alpha team leads along AXIS Carlisle to attack to destroy enemy forces on OBJ Culp by (H+80) Bravo team follows and will maneuver o/o once on OBJ Culp. (2) Fires: 1st in POF for CO Mortars. We are the ME and have priority within the platoon. (3) Task to maneuver units: Alpha team, attacks along AXIS Carlisle to seize OBJ Culp and Knock out any bunkers on OBJ Culp NLT (H+80). Alpha team will provide Pace and compass team, EPW search, and COB teams. Bravo team you will maneuver towards any bunkers o/o and provide bunker clearing team and primary aid & litter. B. Coordinating Instructions: (4) PIR: Weapons, Communication equipment, Suicide vests, location and disposition on the enemy main position. (5) Reports: Crossing LD, enemy contact, captured EPW, ACE after consolidation, and SITREPs as needed. C. Insert terrain model and timeline! Brief your plan using your terrain model!!!!!!
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Situation: Situation: A. Enemy Forces Intel reports a hasty bunker has been set up to the front of the Enemy main defensive area to our front. The bunker is manned by 2-4 lightly armed soldiers who will defend strongly, possibly with a MG. B. Friendly Forces (1) Higher Unit: A Company attacks to seize OBJ Buford NLT (H+80) to facilitate maneuver of follow on units. (2) Right Unit mission: 2nd Platoon, A Company, attacks along AXIS HETH to secure OBJ Shoes NLT (H+60) in order to prevent the detection of the main attack. (3) Left Unit mission: 3rd Platoon, A Company, destroy enemy reinforced squad along left flank to protect main effort’s attack NLT (H+70). C. Attachments and Detachments: None A. Enemy Forces Intel reports a hasty bunker has been set up to the front of the Enemy main defensive area to our front. The bunker is manned by 2-4 lightly armed soldiers who will defend strongly, possibly with a MG. Mission: 1st PLT attacks along AXIS Carlisle to seize OBJ Culp vic ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. Execution: A. (1) Concept of the operation: Cross the LD (5 meters to front) at (H+45) in platoon column , (Your Squad), the ME, leads along AXIS Carlisle to attack to destroy enemy forces on OBJ Culp by (H+80). 2nd Squad follows to secure right flank in support of the main effort. 3rd Squad is in Reserve. (2) Fires: 1st in POF for CO Mortars. ME has priority within the platoon. (3) Task to maneuver units: 1st Squad the ME, attacks along AXIS Carlisle to seize OBJ Culp vic. ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. Cross the LD (H+45). Knock out any bunkers on OBJ Culp NLT (H+80). 2nd Squad will cross the LD(H+45) and move along AXIS Carlisle and block enemy forces to secure right flank of ME. 3rd Squad reserve, be prepared to destroy bunkers on OBJ Culp. B. Coordinating Instructions: (4) PIR: Weapons, Communication equipment, Suicide vests, location and disposition on the enemy main position. (5) Reports: Crossing LD, enemy contact, captured EPW, ACE after consolidation, and SITREPs as needed. Service Support: B. Friendly Forces (1) Higher Unit 1st PLT attacks along AXIS Carlisle to seize OBJ Culp vic ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. (2) Right Unit mission: 2nd Squad will move along AXIS Carlisle and block enemy forces to secure right flank of ME. (3) Left Unit mission: 3rd Squad C. Attachments and Detachments: None
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Situation: Situation: A. Enemy Forces Intel reports a hasty bunker has been set up to the front of the Enemy main defensive area to our front. The bunker is manned by 2-4 lightly armed soldiers who will defend strongly, possibly with a MG. B. Friendly Forces (1) Higher Unit: A Company attacks to seize OBJ Buford NLT (H+80) to facilitate maneuver of follow on units. (2) Right Unit mission: 2nd Platoon, A Company, attacks along AXIS HETH to secure OBJ Shoes NLT (H+60) in order to prevent the detection of the main attack. (3) Left Unit mission: 3rd Platoon, A Company, destroy enemy reinforced squad along left flank to protect main effort’s attack NLT (H+70). C. Attachments and Detachments: None A. Enemy Forces Intel reports a hasty bunker has been set up to the front of the Enemy main defensive area to our front. The bunker is manned by 2-4 lightly armed soldiers who will defend strongly, possibly with a MG. Mission: 1st PLT attacks along AXIS Carlisle to seize OBJ Culp vic ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. Execution: A. (1) Concept of the operation: Cross the LD (5 meters to front) at (H+45) in platoon column , (Your Squad), the ME, leads along AXIS Carlisle to attack to destroy enemy forces on OBJ Culp by (H+80). 2nd Squad follows to secure right flank in support of the main effort. 3rd Squad is in Reserve. (2) Fires: 1st in POF for CO Mortars. ME has priority within the platoon. (3) Task to maneuver units: 1st Squad the ME, attacks along AXIS Carlisle to seize OBJ Culp vic. ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. Cross the LD (H+45). Knock out any bunkers on OBJ Culp NLT (H+80). 2nd Squad will cross the LD(H+45) and move along AXIS Carlisle and block enemy forces to secure right flank of ME. 3rd Squad reserve, be prepared to destroy bunkers on OBJ Culp. B. Coordinating Instructions: (4) PIR: Weapons, Communication equipment, Suicide vests, location and disposition on the enemy main position. (5) Reports: Crossing LD, enemy contact, captured EPW, ACE after consolidation, and SITREPs as needed. Service Support: B. Friendly Forces (1) Higher Unit 1st PLT attacks along AXIS Carlisle to seize OBJ Culp vic ET 37351102 NLT (H+80) to facilitate maneuver of follow on units. (2) Right Unit mission: 2nd Squad will move along AXIS Carlisle and block enemy forces to secure right flank of ME. (3) Left Unit mission: 3rd Squad C. Attachments and Detachments: None Mission: 1st Squad the ME, attacks along AXIS Carlisle to seize OBJ Culp vic. ET 37351102 NLT (H+80) to facilitate maneuver of follow on units.
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(1) MOLECULAR SOLIDS Lattice Points are Molecules INTERMOLECULAR FORCES – Forces BETWEEN molecules They determine melting points and boiling points INTRAMOLECULAR FORCES – Forces WITHIN a molecule Covalent bonds They determine how reactive a molecule is Intermolecular Forces 6B-13 Intramolecular Forces
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7.7 Intermolecular Forces A. London Dispersion Forces London dispersion forces are very weak interactions due to the momentary changes in electron density in a molecule. • The change in electron density creates a temporary dipole. • The weak interaction between these temporary dipoles constitutes London dispersion forces. • All covalent compounds exhibit London dispersion forces. • The larger the molecule, the larger the attractive force, and the stronger the intermolecular 45 forces.
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ConcepTest 4.13a Bowling vs. Ping-Pong I In outer space, a bowling 1) the bowling ball exerts a greater force on the ping-pong ball ball and a ping-pong ball attract each other due to 2) the ping-pong ball exerts a greater force on the bowling ball gravitational forces. How do the magnitudes of these attractive forces compare? 3) the t forces are equal 4) the t forces are zero because they cancel out 5) there are actually no forces at all The forces are equal and opposite by Newton’s Third Law! F12 F21
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Contact and non-contact forces • Pushes, pulls, friction, and tension are contact forces- whatever exerts the force actually touches the object • Non-contact forces:  Forces that act without contact between objects a) electric forces b) magnetic forces c) gravity 8
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Contact and non-contact forces • Pushes, pulls, friction, and tension are contact forces- whatever exerts the force actually touches the object • Non-contact forces:  Forces that act without contact between objects a) electric forces b) magnetic forces c) gravity
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Contact and non-contact forces • Pushes, pulls, friction, and tension are contact forces- whatever exerts the force actually touches the object • Non-contact forces:  Forces that act without contact between objects a) electric forces b) magnetic forces c) gravity
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Contact and non-contact forces • Pushes, pulls, friction, and tension are contact forces- whatever exerts the force actually touches the object • Non-contact forces:  Forces that act without contact between objects a) electric forces b) magnetic forces c) gravity
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Potential Energy • Potential energy is stored energy that can be readily converted to other forms of energy, such as kinetic or thermal energy. • Forces that can store useful energy are conservative forces: • Gravity • Elastic forces • Forces such as friction that cannot store useful energy are non-conservative forces. • Only conservative forces have associated potential energy © 2015 Pearson Education, Inc. Slide 10-10
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Types of Forces In our world, forces can be categorized as one of 2 types: 1. Non-Contact: force is exerted over a distance of space with out direct contact (a.k.a. “action-at-a-distance” forces) 2. Contact: forces is exerted due to direct contact (Note: at the microscopic level, ALL forces are non-contact) • In either case, Newton’s 3rd law still applies to the forces present (more on this later…) Examples of each type of force: Non-Contact: • Gravitational • Electric • Magnetic Contact: • Normal • Frictional • Tension
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Several Forces The potential energy can be defined even when more than one force is acting, so long as all of the forces are conservative. An important example is when both gravity Fgrav and a spring force Fspr are acting (so long as the spring obeys Hooke’s Law, F(r) = kr).  The work-kinetic energy theorem says that if we move an object subject to these two forces along some path, the forces will do work independent of the path (depending only on the two endpoints of the path)Tgiven Wgravby  Wspr  (U grav  U spr )   Rearrangement shows that (T  U grav  U spr ) 0 hence total Principle mechanical energy is conserved. of Conservation of Energy for Extended One Particleto n such forces: If all of the n forces F (i=1…n) acting on a particle are conservative, each with its i corresponding potential energy Ui(r), the total mechanical energy defined as E T  U T  U1 (r )  U n (r ) is constant in time. September 22, 2009
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32 Forces Affecting Trading In Global Markets • Socialcultural Forces • Economic Forces • Financial Forces • Legal & Regulatory Forces • Physical and Environmental Forces
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Forces Known to Physics There are four fundamental forces known to physics:     Gravitational Force (today) Electromagnetic Force (later in Physics 1 and 2) Weak Nuclear Force Strong Nuclear Force (All forces we observe are comprised of these fundamental forces. Most forces observable in everyday experience are electromagnetic on a microscopic level.) 17-2
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