If they're brought closer together
        
                    
             
        
        
        
<h3><u>Answer;</u></h3>
1 × 10^-8 M
<h3><u>Explanation</u>;</h3>
pH is given by the -log[H+] while 
pOH is given by the -log[OH-]
But;
pH + pOH = 14
Thus; if pH is 6, then pOH = 8 
pOH = 8
-log[OH-] = 8 
[OH-] = 10^-8 M
The concentration of OH- ions at a pH of 6 is 1 × 10^-8 M
 
        
        
        
Answer:
A
Explanation:
this because 
gravitational potential energy = mass x height x gravitational field strength
so let's assume mass is 2 kg and gravitational field strength is 10 N /kg
so when height is very low, take it as 3 m
gravitational potential energy= 2 x 3 x 10 = 60 j
but when height is 6m 
gravitational potential energy = 2 x 6 x 10 = 120 j
so when the height is the greatest, the gravitational potential energy is the highest 
so A is the heighest so it has the highest gravitational potential energy. 
hope this helps 
please mark it brainliest :D 
 
        
             
        
        
        
Answer:
The impact force is 98000 N. 
Explanation:
mass = 10 tons 
The impact force is the weight of the object. 
Weight =mass x gravity 
W = 10 x 1000 x 9.8 
W = 98000 N 
The impact force is 98000 N. 
 
        
             
        
        
        
Answer:
 1200N/m
Explanation:
given parameters:
force on the motorcycle spring is 240N
Extension 2cm or 0.02m
unknown _
spring constant:
:?
solution:
to a spring a force applied is given as :
f=ke
f is applied as force 
k is spring constant 
e is the Extension 
240= kx0.02 
k=1200N/m