Particles in the liquid state of matter are close together, yet free to move around one another
        
             
        
        
        
C. Magnesium 
Because it has the lowest number. :)
 
        
             
        
        
        
Answer:
a = 0.3 m/s²
Explanation:
Given: 45 N, 150 kg
To find: a
Formula: 
Solution: To find a, divide the force by the weight  
A = F ÷ m
=  45 ÷  150
= 0.3 m/s²
Newtons are derived units, equal to 1 kg-m/s². In other words, a single Newton is equal to the force needed to accelerate one kilogram one meter per second squared.
 
        
             
        
        
        
Answer:
(A) Reading will be 65 N 
(B) Net force on the elevator will be 49.076 N    
Explanation:
We have given the balance force = 65 N 
Acceleration due to gravity 
We know that W=mg 
So 
m = 6.632 kg
(a) In first case as the as the speed is constant so the force on the elevator will be 65 N 
(B) In second case as the elevator is decelerating at a rate of 
So net acceleration = 9.8-2.4=
So net force on elevator will be = m× net acceleration = 6.632×7.4 = 49.076 N