Answer:
'Daniela had a 5-meter head start, and Leonard caught up to her at 25 meters.'
Explanation:
hope that helps :)
 
        
                    
             
        
        
        
Answer:

Explanation:
The capacitance of the parallel-plate capacitor is given by:

where
 is the vacuum permittivity
 is the vacuum permittivity
 is the area of the plates
 is the area of the plates
 is the separation between the plates
 is the separation between the plates
Substituting,

The energy stored in the capacitor is given by

Since we know the energy

we can re-arrange the formula to find the charge, Q:

 
        
             
        
        
        
If both waves have the same wavelength, then the amplitude of 
their sum could be anything between 1 cm and 9 cm, depending 
on the phase angle between them.
If the waves have different wavelengths, then the resultant is a beat 
with an amplitude of 9 cm.
        
             
        
        
        
Answer:
3.0 x10^-3 J
Explanation:
The potential energy of a spring is given by PE = (0.5)k*x^2  
Where 
K: Spring Constant = 60 N/m
x: displacement of the spring from its equilibrium position = 1cm = 0.01m
Then PE = 0.5(60)(.01)^2 = 0.003J = 3.0 x10^-3 J