1. Un automóvil tiene una aceleración muy alta. Partiendo del reposo, su velocidad puede, en promedio, aumentar 7.31 m/s cada segundo, hasta alcanzar el valor de 27.8 m/s, equivalentes a 100
km/h.
a) ¿Cuánto tiempo necesita para alcanzar la velocidad de 100 km/h, partiendo del reposo?
b) Suponiendo que su aceleración es constante, ¿qué distancia recorre en este movimiento
acelerado?
c) ¿Puedes decir, sin hacer ningún cálculo, qué parte de la distancia calculada en b) ha recorrido el
automóvil hasta el momento en que su velocidad era de 50 km/h?

the largest known star in the universe is uy scuti, a hypergiant with a radius around 1,700 times larger than the

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.

im sorry i dont know

radiation

explanation:

heat is transmitted by radiation