Nope, I disagree with the former answer. The answer is definitely Z. <u>W area</u> (boxed with red outline) is represented as the hot reservoir while <u>Z area</u> is the cold reservoir (boxed with blue outline). X area is the heat engine itself and Y area is the work produced from thermal energy from hot reservoir. Typically, all heat engines lose some heat to the environment (based from the second law of thermodynamics) that is symbolically illustrated by the lost energy in the cold reservoir. This lost thermal energy is basically the unusable thermal energy. The higher thermal energy lost, the less efficient your heat engine is. 
        
                    
             
        
        
        
I believe its newtons 3rd law for every action there is an equal but opposite reaction since the squid is moving foward by shooting the water its pushing the squid back as its reaction. Hope this helped !
        
             
        
        
        
Answer:
vi = 4.77 ft/s
Explanation:
Given:
- The radius of the surface R = 1.45 ft
- The Angle at which the the sphere leaves
- Initial velocity vi
- Final velocity vf
Find:
Determine the sphere's initial speed.
Solution:
- Newton's second law of motion in centripetal direction is given as:
                          m*g*cos(θ) - N = m*v^2 / R
Where, m: mass of sphere
              g: Gravitational Acceleration
              θ: Angle with the vertical
              N: Normal contact force.
- The sphere leaves surface at θ = 34°. The Normal contact is N = 0. Then we have:
                          m*g*cos(θ) - 0 = m*vf^2 / R
                          g*cos(θ) = vf^2 / R     
                          vf^2 = R*g*cos(θ)
                          vf^2 = 1.45*32.2*cos(34) 
                          vf^2 = 38.708 ft/s
- Using conservation of energy for initial release point and point where sphere leaves cylinder:
                           ΔK.E = ΔP.E
                           0.5*m* ( vf^2 - vi^2 ) = m*g*(R - R*cos(θ))
                           ( vf^2 - vi^2 ) = 2*g*R*( 1 - cos(θ))
                           vi^2 =  vf^2 - 2*g*R*( 1 - cos(θ))
                           vi^2 = 38.708 - 2*32.2*1.45*(1-cos(34))
                           vi^2 = 22.744
                            vi = 4.77 ft/s
 
        
             
        
        
        
Explanation:
Given that,
Capacitor 
Resistor 
Peak voltage = 5.10 V
(A). We need to calculate the crossover frequency 
Using formula of frequency

Where, R = resistor
C = capacitor
Put the value into the formula


(B). We need to calculate the  when
 when 
Using formula of  

Put the value into the formula


(C). We need to calculate the  when
 when 
Using formula of  


(D). We need to calculate the  when
 when 
Using formula of  


Hence, This is the required solution.
 
        
             
        
        
        
-- The position of the sun was originally the primary influence in determining 
when people went to sleep and when they woke up.  Although it no longer 
directly influences us, that pattern is so deeply ingrained in our make-up 
that our behavior still largely coincides with the positions of the sun.
-- The position of the Moon was originally the primary influence in determining 
the cycle of human female physiology.  Although it no longer directly influences 
us, that pattern is so deeply ingrained in human make-up that the female cycle 
still largely coincides with the positions of the Moon.