Para los fenómenos observables que se proponen a continuación, adoptar un sistema de referencia y elaborar un gráfico cualitativo de la posición en función del tiempo.
a) Posición de un automóvil estacionado.
b) Posición de un ascensor que parte desde el noveno piso hacia planta baja.
c) Posición de una moneda arrojada hacia arriba
d) Altura que alcanza el agua en un balde inicialmente vacío, puesto bajo canilla abierta.
e) Posición de la mano de un carpintero mientras pinta un listón.
helpp

answer; /// the above statement is (true);

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.

higher potential

explanation:

because it is in a high speed so it must move into a of high potential