Reconsider Prob. 3–73. Using EES (or other) software, investigate the effect of water c.epth on the force exerted on the plate by the ridge. Let the water depth vary from 0 to 5 m in increments of 0.5 m. Tabulate and plot your results.
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 unit vector has a magnitude of 1 without units. Any vector can be expressed as: A = A i + Axj + Ayk z The vector product, or cross-product, of two vectors is: C = A x B The direction of the vector product can be found using the right hand rule. The vector product is not commutative: A x B = -B x A The study of motion is called kinematics. Forces cause motion. A displacement vector starts at an object’s initial position. The change in a particle’s coordinate (along the x-axis) is its 1-D displacement vector: deltaX = X – X a2d th1 average x- velocity is Vavg-x= deltaX / deltaT Average speed is the ratio of the total distance traveled and the total time duration that is a scalar quantity. S avg= total distance / deltaT Instantaneous velocity is at