Surface waves arrive at a seismograph first because they are not impeded by rocks
Answer:
![[HI]_{eq}=0.942M](https://tex.z-dn.net/?f=%5BHI%5D_%7Beq%7D%3D0.942M)
Explanation:
Hello,
In this case, the initial concentrations of hydrogen and iodine are the same:
![[H_2]_0=[I_2]_0=0.600M](https://tex.z-dn.net/?f=%5BH_2%5D_0%3D%5BI_2%5D_0%3D0.600M)
Thus, considering the given undergoing chemical reaction, one states the law of mass action in terms of the change 
due to the chemical change as shown below:
Therefore, solving for by quadratic equation one obtains:
Nevertheless, the feasible result is the first one as the second one results in negative concentrations, thus, the hydroiodic acid equilibrium concentration turns out:
![[HI]_{eq}=2*0.471M=0.942M](https://tex.z-dn.net/?f=%5BHI%5D_%7Beq%7D%3D2%2A0.471M%3D0.942M)
Best regards.
Answer:
It's too far away
Explanation:
According to classical mechanics, gravitational pull is inversely proportional to the distance squared; as the distance increases, the gravitational pull decreases at a faster and faster rate. Since Alpha Centauri A is a few lightyears (Tens of trillions of kilometers away), without even needing to calculate the force of gravity, it is very miniscule.
Answer:
The kinetic energy of the two curling stones is 320 J
Explanation:
Given;
mass of the first curling stone, m₁ = 20 kg
velocity of the first curling stone, v₁ = 4 m/s
velocity of the second curling stone, v₂ = - 4m/s
assuming the second curling stone to have equal mass with the first stone = 20 kg
The kinetic energy of the first curling stone is given by;
K.E₁ = ¹/₂m₁v₁²
K.E₁ = ¹/₂(20)(4)²
K.E₁ = 160 J
The kinetic energy of the second stone is given by;
K.E₂ = ¹/₂m₂v₂²
K.E₂ = ¹/₂ (20) (-4)²
K.E₂ = 160 J
Thus, the kinetic energy of the two curling stones is given by;
K.E = K.E₁ + K.E₂
K.E = 160 J + 160 J
K.E = 320 J
Therefore, the kinetic energy of the two curling stones is 320 J
The answer is (3) 0.200 kJ
Hope I helped!
