Answer:

Explanation:
Using kinematics equations:

Use  due to condition of distance traveled.
 due to condition of distance traveled.
Solving second equation for time, there are two solutions. t=0 and 

Use the expression in the first equation to have

Using trigonometric identities, you have the answer of the distance.
By doing the ratio for two different angles, you have the second answer. Due to sine function properties, the distances can be the same to complementary angles. Example, for 20° and 70°, the distance is the same.
 
        
             
        
        
        
In solids: All metals are good conductors of electricity as they contain free moving electrons. Non-metals doesn't conduct , but we consider Graphite the only non-metal that can conduct electricity for the presence of free moving electrons.
In Liquids ; Ionic compunds contains free moving ions , so they conduct electricity as well . 
        
             
        
        
        
Answer:
 X₃₁ = 0.58 m  and  X₃₂ = -1.38 m
Explanation:
For this exercise we use Newton's second law where the force is the Coulomb force
         F₁₃ - F₂₃ = 0
         F₁₃ = F₂₃
Since all charges are of the same sign, forces are repulsive
         F₁₃ = k q₁ q₃ / r₁₃²
         F₂₃ = k q₂ q₃ / r₂₃²
Let's find the distances
          r₁₃ = x₃- 0
          r₂₃ = 2 –x₃
We substitute
       k q q / x₃² = k 4q q / (2-x₃)²
       q² (2 - x₃)² = 4 q² x₃²
         4- 4x₃ + x₃² = 4 x₃²
         5x₃² + 4 x₃ - 4 = 0
We solve the quadratic equation
         x₃ = [-4 ±√(16 - 4 5 (-4)) ] / 2  5
         x₃ = [-4 ± 9.80] 10
        X₃₁ = 0.58 m
        X₃₂ = -1.38 m
For this two distance it is given that the two forces are equal
 
        
             
        
        
        
Answer:
B The most basic atoms were formed due to the force of gravity. 
Explanation:
Since the statement says that the atoms could have faced the peril of disintegrating into the void, this means that, they could have been destroyed by movement away into the void. 
But, it also says that by now, they are feeling the influence of gravity to bring them safely together. This statement shows that gravity brings them (the atoms) together and thus doesn't allow them disintegrate into the void. 
<u>So, a reader can thus infer that the most basic atoms were formed due to the force of gravity since it doesn't allow the atoms disintegrate into the void.</u>
So, B is the answer.
 
        
             
        
        
        
<span>The following which is not an example of work is </span>C. holding a tray in the cafeteria line because <span>if force displaces an object it should work. I think it's clear and I am pretty sure this answer will help you.</span>