Answer:
(a) A = 
(b) 
(c) 
(d) 
Solution:
As per the question:
Radius of atom, r = 1.95  
 
Now, 
(a) For a simple cubic lattice, lattice constant A:
A = 2r
A = 
(b) For body centered cubic lattice:


(c) For face centered cubic lattice:


(d) For diamond lattice:


 
        
             
        
        
        
Answer:
The Answer is A They can damage hearing.
Explanation:
I took the Test
 
        
             
        
        
        
Answer:
A. Two tennis balls that are near each other  
Explanation:
The formula for gravitational force (F) between two objects is

where m₁ and m₂ are the masses of the two objects, d is the distance between their centres, and G is the gravitational constant.
Thus, two objects that are far from each other will have a smaller gravitational force. We can eliminate Options C and D.
If the objects are at the same distance, those with the smaller mass will have a smaller force.
The mass of a tennis ball is 57 g.
The mass of a soccer ball is 430 g.
Two tennis balls that are near each other will have a smaller gravitational attraction.
 
        
             
        
        
        
Answer:
Mass is the quantity of matter contained in a body. The mass of an object is measured in kilogram (kg). 
Explanation:
 
        
                    
             
        
        
        
Answer:
1. The resistance of any physical object to any velocity 
2. It continues in it's existing state of rest or uniform motion
3. Mass is a quantity that is solely dependent upon the inertia of an object.