1. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 1 Today’s Physics Puzzler: You are just served a hot cup of coffee and want it to be as hot as possible later. If you like milk in your coffee, should you add it: 1.when you get the cup, OR 2.just before you drink it? credit: Prof. Henry Greenside, Duke University, http://www.phy.duke.edu/~hsg/

2. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 2 ANNOUNCEMENTS

3. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 3 1 of 3 Vector A is as shown. Its magnitude is A. The x component of A, referred to as A x, is 1.A x = A sin  2.A x = A cos  3.A x = A tan  4.A x = A / cos  x y  A

4. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 4 2 of 3 Vector A and vector B are shown. The resultant vector R = A + B would be best represented by: 1 A B 2 34 R R R R

5. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 5 3 of 3 Vector A and vector B are shown. The resultant vector R = A – B would be best represented by: 1 A B 2 34 R R R R

6. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 6 ANNOUNCEMENTS

7. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 7

8. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 8 Etc.

9. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 9 Etc.

10. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 10

11. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 11 1 of 3 Vector A is as shown. Its magnitude is A. The x component of A, referred to as A x, is 1.A x = A sin  2.A x = A cos  3.A x = A tan  4.A x = A / cos  x y  A

12. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 12 2 of 3 Vector A and vector B are shown. The resultant vector R = A + B would be best represented by: 1 A B 2 34 R R R R

13. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 13 3 of 3 Vector A and vector B are shown. The resultant vector R = A – B would be best represented by: 1 A B 2 34 R R R R

14. PHYS-1600/2000PHYS-1600/2000 I5 Position VectorNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 14 14141414 25252525 3333 PROJECTION SCREEN HAND IN TODAY’S ACTIVITY SHEETS 6666