Answer:
D
Explanation:
There is a variety of many types of energies. Some of which are mechanical, thermal, electromagnetic, nuclear, chemical, sonic, and more.
 
        
             
        
        
        
Answer:
time required after impact for a puck is 2.18 seconds
Explanation:
given data 
mass = 30 g = 0.03 kg
diameter = 100 mm = 0.1 m
thick = 0.1 mm = 1 × m
 m
dynamic viscosity = 1.75 × Ns/m²
 Ns/m²
air temperature = 15°C
to find out
time required after impact for a puck to lose 10%
solution
we know velocity varies here 0 to v 
we consider here initial velocity = v
so final velocity = 0.9v
so change in velocity is du = v
and clearance dy = h
and shear stress acting on surface is here express as 
 = µ 
so 
 = µ   ............1
   ............1
put here value
 = 1.75× ×
 × 
 = 0.175 v
and 
area between air and puck is given by 
Area =  
 
area  =   
 
area = 7.85 ×  m²
 m²
so 
force on puck is express as 
Force = × area 
force = 0.175 v × 7.85 × 
force = 1.374 ×  v
 v    
and now apply newton second law
force = mass × acceleration
- force = 
- 1.374 ×  v =
 v = 
t =  
time = 2.18 
so time required after impact for a puck is 2.18 seconds
 
        
             
        
        
        
Answer:
hello hi how are you glad you're good goodbye
 
        
                    
             
        
        
        
I was struck by this many years ago while in graduate school. ... People with mental illness tend to die young , but so do their families. ... there is no medical assessment that can diagnose the absence of illness.