If you throw a ball up with a velocity of 3 m/s, how long will it take for the ball to reach the top of its path? - 3.31 sec
- 2.31 sec
- 1.31 sec
- 0.31 sec

answer: a tank of height h is filled with water and sits on the ground. water squirts from a hole at a height y above the ground and has a range r. for two y values, 0 and h, r is zero. determine the value of y for which the range will be a maximum.

explanation:

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante