What term is used for “electricity at rest”?
Physics 105 Week 2 Notes By Lauren Faris Chapter 2: 1D Kinematics Sig figs are important! They do not all follow the rules with addition/subtraction. It depends on the last digit that makes a big enough difference. Vectors need 2 components: magnitude and direction. Scalars indicate only magnitude. You add 2 vectors by placing them head to tail. With vectors, b + (-b) = 0 is additive inverse. With vectors, R = a – b = a + (-b) (vector subtraction). A y Asin(theta) A x Acos(theta) Relations among vectors do not depend on the origin or the orientation of the axes. Multiplying a vector by a scalar changes the magnitude, not the direction: a * s = sa The scalar product can be positive, negative, or zero. A un
