Answer:
Explanation:
Given
initially steam is at  and converted to
 and converted to  ice
 ice
Let m be the mass of steam
latent heat of fusion and vaporization for water is 


Heat required to convert steam in to water at 

Heat required to lower water temperature to 



Heat required to convert  water to ice at
 water to ice at  is
 is 





So this energy is equal to kinetic energy of  bullet of mass m moving with velocity v 




 
  
 
        
             
        
        
        
Answer:
A. Acceleration always involves changing speed.
Explanation:
Acceleration is defined as the rate of change of velocity.
Velocity is a vector quantity and is defined as speed in a given direction. Therefore, when any or both of the components of velocity is changing with time, a body is said to be accelerating i.e. acceleration involves a change of speed or change in direction, or a change in both speed and direction.
Considering the statements:
A. Acceleration always involves changing speed is false because acceleration can occur when speed is constant but direction is changing.
B. Changing direction always involves acceleration is true because, a change in direction results in a change in velocity.
C Changing speed always involves acceleration is true because, changing speed results in a change in velocity.
D. Circular motion always involves acceleration is true because in circular motion the direction is always changing, and this results in a change in velocity
 
        
             
        
        
        
Answer:
Well AM/Fm is digitally using soundwaves for cars through signal, which we cant hear without one (radio). Concerts are in real life and use wavelegnths that we hear because it bounces off overytihing.
Explanation:
 
        
             
        
        
        
The outside temperature is one of them, its material another, and the last one is its mass.
        
             
        
        
        
Answer:
i can help you i know this answer