Consider a vector 4.08 + 3.0 , wherex, are the unit vectors in x-, y-directions, respectively. (a) what is the magnitude of the vector a? (b) what are the angles vector a makes with the x and y axes, respectively?

Natural forces that can alter ecosystems include seasons and climate changes. t or f

Why is metal often used for cooking pan?

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1