Answer:
See explanation
Explanation:
a) u= 60 m/s, v= 45 m/s, t = 7 secs
From;
v = u + at
a = v - u/t
a= 45 - 60/7
a = -2.14 m/s^2
b)
u = 200 m/s
v= 235 m/s
t = 30 secs
v = u + at
a = v-u/t
a = 235 - 200/30
a= 1.17 m/s^2
c)
i) Acceleration = 3 - 1/2-0 = 2/2 = 1 m/s^2
ii) The slope between 2 and 5 is zero because velocity was not changing with time.
iii) Within the time between 2 and 5 the speed remained at 3 m/s
iv) the slope between 5 and 8 is 2 - 3/8 - 5 = -1/3 = -0.33m/s^2
v) The negative slope means that velocity is decreasing with time(deceleration).
Pollution would go in the form of surface runoff and into rivers and ocean and then disrupt ecosystems because some ecosystems depend on water
Given:
Stock dose/concentration of 20% Acetylcysteine (200 mg/mL)
150 mg/kg dose of Acetylcysteine
Weight of the dog is 13.2 lb
First we must convert 13.2 lb to kg:
13.2 lb/(2.2kg/lb) = 6 kg
Then we must calculate the dose:
(150 mg/kg)(6kg) = 900 mg
Lastly, we must calculate the dose in liquid form to be administered:
(900 mg)/(200 mg/mL) = 4.5 mL
Therefore, 4.5 mL of 20% Acetylcysteine should be given.
<span>This example represents the challenge of survival of the fittest. In this situation, the trees have a distinct advantage due to their above average height. This puts them in the best position to gain the resources that they need to survive, most notably, the sun. The smaller plants, however, do not have this advantage, and lose out to the trees.</span>
