Ch 01: Units & VectorsWorksheetSee all chapters
All Chapters
Ch 01: Units & Vectors
Ch 02: 1D Motion (Kinematics)
Ch 03: 2D Motion (Projectile Motion)
Ch 04: Intro to Forces (Dynamics)
Ch 05: Friction, Inclines, Systems
Ch 06: Centripetal Forces & Gravitation
Ch 07: Work & Energy
Ch 08: Conservation of Energy
Ch 09: Momentum & Impulse
Ch 10: Rotational Kinematics
Ch 11: Rotational Inertia & Energy
Ch 12: Torque & Rotational Dynamics
Ch 13: Rotational Equilibrium
Ch 14: Angular Momentum
Ch 15: Periodic Motion (NEW)
Ch 15: Periodic Motion (Oscillations)
Ch 16: Waves & Sound
Ch 17: Fluid Mechanics
Ch 18: Heat and Temperature
Ch 19: Kinetic Theory of Ideal Gasses
Ch 20: The First Law of Thermodynamics
Ch 21: The Second Law of Thermodynamics
Ch 22: Electric Force & Field; Gauss' Law
Ch 23: Electric Potential
Ch 24: Capacitors & Dielectrics
Ch 25: Resistors & DC Circuits
Ch 26: Magnetic Fields and Forces
Ch 27: Sources of Magnetic Field
Ch 28: Induction and Inductance
Ch 29: Alternating Current
Ch 30: Electromagnetic Waves
Ch 31: Geometric Optics
Ch 32: Wave Optics
Ch 34: Special Relativity
Ch 35: Particle-Wave Duality
Ch 36: Atomic Structure
Ch 37: Nuclear Physics
Ch 38: Quantum Mechanics

Solution: What is the unit vector that points from the point (1, 2, 3) toward the point (3, 2, 1)? 1. 1 / √2 (1, 1, 0) 2. 1 / √2 (−1, 0, 1) 3. 1 / √2 (0, 1, −1) 4. 1 / √3 (1, 1, 1) 5. 1 / √3 (1, 1, −1) 6.

Problem

What is the unit vector that points from the point (1, 2, 3) toward the point (3, 2, 1)?

1. 1 / √2 (1, 1, 0)

2. 1 / √2 (−1, 0, 1)

3. 1 / √2 (0, 1, −1)

4. 1 / √3 (1, 1, 1)

5. 1 / √3 (1, 1, −1)

6. (−1, 0, 1)

7. (−1, 0, −1)

8. (1, 0, −1)

9. 1 / √2 (1, 0, −1)

10. (1, 0, 1)