It's the fourth choice.
This is because, since we are closer to the Earth, the Earth will have a stronger gravitational pull on us since again, we are closer.
That also explains tides, but that's just getting off topic. Hope I helped.
        
                    
             
        
        
        
Answer: 
Explanation:
Given
Capacitance 
Resistance 
Inductance 
In LCR circuit, current is maximum at resonance frequency i.e.
 
Insert the values

Also, frequency is given by 


 
        
             
        
        
        
Answer:
x =  0.0734 m = 7.34 cm
Explanation:
First we shall calculate the area of the piston: 

Now, we will calculate the force on the piston due to atmospheric pressure:

Now, for the compression of the spring we will use Hooke's Law as follows:

where,
k = spring constant = 3400 N/m
x = compression = ?
Therefore,
<u>x =  0.0734 m = 7.34 cm</u>
 
        
             
        
        
        
Answer:
sorry in my sense, an experiment once only changes one variable and need a control setup for experimental setup to make sure is fair test
 
        
             
        
        
        
Answer:
The total momentum is  
Explanation:
The diagram illustration this  system is shown on the first uploaded image (From physics animation)
From the question we are told that 
      The mass of the first object is 
       The speed of the first mass is 
       The mass of the second object is  
       The speed of the second object is  assumed to be  
 The total momentum of the system is the combined momentum of both object which is mathematically represented as 
            
    substituting values 
             
             