Geothermal energy provides force that causes magma to erupt to the surface
        
             
        
        
        
At the entrance of most beaches, there is a bulletin board with notices about water conditions: maybe a faded sign warning about rip currents and a list of this week's tide tables. Most people pass them by without a second thought, but if you want to enter the ocean, it is important to know its movements, whether to avoid being caught in a riptide or to figure out when the waves will be at their best.
Hope this helps
 
        
                    
             
        
        
        
I’m pretty sure it’s Radioactive decay
        
                    
             
        
        
        
Answer:
Explanation:
l = 200 m 
i = 5 A west
B = 6 micro Tesla direction 30 degree north of east
angle between length vector and the magnetic field vector = 180 - 30 = 150 degree 
Write the length and the magnetic field in the vector form 






Thus, the magnitude of force is 3 x 10^-3 newton and it is directed towards negative z axis direction.