Papalia, olds e feldman (2006) descrevem o desenvolvimento humano como o estudo científico da mudança e da continuidade durante todo o ciclo humano de vida. assim, temos que o desenvolvimento humano é um processo e, por isso, se encontra em constante transformação e evolução. desta forma, o desenvolvimento humano tem uma etapa de início e fim. quais são essas etapas

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants

Which symbol in the first law of thermodynamics represents the sum of the chemical and thermal energy stored in atoms and molecules? a. q b. w c. v d. u