Transverse wave as the wave is going up and down no compressions
        
             
        
        
        
The period of the pendulum is 8.2 s
Explanation:
The period of a simple pendulum is given by the equation:

where
L is the length of the pendulum
g is the acceleration of gravity
T is the period
We notice that the period of a pendulum does not depend at all on its mass, but only on its length.
For the pendulum in this problem, we have
L = 16.8 m
and 
 (acceleration of gravity)
 (acceleration of gravity)
Therefore the period of this pendulum is

#LearnWithBrainly
 
        
             
        
        
        
Photosynthesis in plants converts solar energy into chemical energy using electrons and protons from water.
        
             
        
        
        
Answer:
Explanation:
To stop a ball with high momentum in a small-time imparts a high amount of impact on hands. This is the reason for the stinging of hands.
The momentum of the ball is due to the mass and velocity. To prevent stinging in the hand one needs to lower his hands to increase the time of contact. In this way, the momentum transfer to the hands will be lesser.