Calcula la fuerza de atracción gravitacional entre Tierra y el Sol, si están separados por 1.5x1011m y sus masas son 1.98x1030kg para el Sol y 5.98 X 1024 kg para la Tierra

How many hydrogen (h) atoms are in one molecule of sulfuric acid, h2so4? (1 points) 1 2 4 7

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)