Answer:
See explaination 
Explanation:
Please kindly check attachment for the step by step solution of the given problem. 
 
        
             
        
        
        
Answer: amps, or amperes
Explanation: Electric current is measured in amperes, usually shortened to amps. 
 
        
             
        
        
        
Answer:
Weight of block is 191.424 Kg
Explanation:
The volume of rectangular block =  cubic meter
 cubic meter
1/5th of its volume being out of water which means water of volume nearly 4/5 th of the volume of rectangular block is replaced 
Volume of replaced water =  cubic meter
 cubic meter
Weight of replaced water = weight of rectangular block =  Kg/M3
 Kg/M3
= 191.424 Kg