The answer would Stratosphere because <span>1) The </span>troposphere<span> is the first </span>layer above<span> the surface and contains half of the Earth's </span>atmosphere<span>. Weather occurs in this </span>layer. 2) Many jet aircrafts fly in thestratosphere<span> because it is very stable. Also, the ozone </span>layer<span> absorbs harmful rays from the Sun</span>
Answer:
They wishin' on me, yuh
I been movin' calm, don't start no trouble with me
Tryna keep it peaceful is a struggle for me
Don't pull up at 6 AM to cuddle with me
You know how I like it when you lovin' on me
I don't wanna die for them to miss me
Yes, I see the things that they wishin' on me
Hope I got some brothers that outlive me
They gon' tell the story, shYit was different with me
Explanation:
Explanation:
Given that,
Mass of a ball, m = 250 g = 0.25 kg
Initial velocity of the ball, u = 6 m/s
Final velocity of the ball, v = -9 m/s
(a) Impulse of the system is given by :
Impulse = change in momentum
J = m(v-u)
J = 0.25(-9-6)
= -3.75 kg-m/s
(b) Impulse = Ft
If t = 0.5 min = 30 s
So,
So, impulse of the system is -3.75 kg-m/s and the force is -0.125 N.
Answer:
The second statement is true: If the concentration of Y is increased by a factor of 1.5, the rate will increase by a factor of 2.25.
Explanation:
Hi there!
Let´s write the rate law for the original reaction and the reaction with X increased by 1.5:
rate 1 =k [X][Y]²
rate 2 = k[1.5 X][Y]²
Now we have to demonstrate if rate 2 = 2.25 rate 1
Let´s do the cocient between the two rates:
rate 2/ rate 1
if rate 2 = 2.25 rate 1
Then,
rate 2 / rate 1 = 2.25 rate 1 / rate 1 = 2.25
Let´s see if this is true using the expressions for the rate law:
rate 2 / rate 1
k[1.5 X][Y]² / k [X][Y]² = 1.5 k [X][Y]² / k[X][Y]² = 1.5
2.25 ≠ 1.5
Then the first statement is false.
Now let´s write the two expressions of the rate law, but this time Y will be increased by 1.5:
rate 1 = k[X][Y]²
rate 2 = k[X][1.5Y]²
Again let´s divide both expressions to see if the result is 2.25
rate 2 / rate 1
k[X][1.5Y]²/ k [X][Y]²
(distributing the exponent)
(1.5)²k [X][Y]² / k [X][Y]² = (1.5)² = 2.25
Then the second statement is true!
