Block A in ?Fig. P5.87? weighs 1.90 N, and block B weighs 4.20 N. The coefficient of kinetic friction between all surfaces is 0.30. Find the magnitude of the horizontal force necessary to drag block B to the left at constant speed if A and B are connected by a light, flexible cord passing around a fixed, frictionless pulley.
Organic Chemistry Equilibrium constant eA + fB sC + tD K eq[C] [D] / [A] [B] f Thermodynamics Y Z Thermodynamics: how much of ‘Z’ is formed Kinetics: How fast ‘Z’ is formed ∆G⁰ =RTln K eq logK eq pka (conjugate acid) pka (acid) ∆G⁰ = ∆H⁰ – T ∆S⁰ Bond dissociation Energy (BDE) = BDE (bonds broken) – BDE (bonds formed) HH + CH – C3 CH CH 2 CH – C3 2 H H Rate = frequency of collision X fraction of proper orientation X fraction with sufficient (How fast) (location) (energy)