Someone can make an introduction about getting a flu shot because, mostly everyone in the world have gotten or just got a flu shot. One example of a pro is that, a flu shot can prevent the flu, and other deadly sicknesses. On example of a con is that, some flu shots can carry side effects which is something that should be tested before given to adults and especially kids!!! Hope this helps!!! Good luck
        
             
        
        
        
Answer I don’t knows
Explanation: i don’t know I just want points
 
        
                    
             
        
        
        
There is a threshold frequency for each metal, and only light of a frequency higher than this threshold causes electrons to be emitted from the metal surface.
        
             
        
        
        
Answer:

Explanation:
We are asked to find the final velocity of the boat. 
We are given the initial velocity, acceleration, and time. Therefore, we will use the following kinematic equation.

The initial velocity is 2.7 meters per second. The acceleration is 0.15 meters per second squared. The time is 12 seconds. 
 = 2.7 m/s = 2.7 m/s
- a= 0.15 m/s²
- t= 12 s
Substitute the values into the formula. 

Multiply the numbers in parentheses. 




Add. 

The final velocity of the boat is <u>4.5 meters per second in the positive direction.</u>