Path 2. 
Displacement is the direction and magnitude of an object from its starting point, so path 2 is the direct route you would need to take to find direction and magnitude.
        
             
        
        
        
Answer:
a) 4.04*10^-12m
b) 0.0209nm
c) 0.253MeV
 
Explanation:
The formula for Compton's scattering is given by:

where h is the Planck's constant, m is the mass of the electron and c is the speed of light.
a) by replacing in the formula you obtain the Compton shift:

b) The change in photon energy is given by:

c) The electron Compton wavelength is 2.43 × 10-12 m. Hence you can use the Broglie's relation to compute the momentum of the electron and then the kinetic energy.


 
        
             
        
        
        
Answer:
V (initial vertical velocity) = 45.4 sin 31.2 = 23.52 m/s
1/2 m V^2 = m g h      conservation of energy
h = V^2 / (2 g) = 23.52^2 / 19.6 = 28.2 m       max height
Check: 
t = 28.2 / 9.8 = 2.88 sec    time to reach max height
h = 23.52 * 2.88 - 1/2 g 2.88^2 = 27.1 m
 
        
             
        
        
        
<span>D) Electromagnetic radiation travels in the form of longitudinal waves.</span>
        
             
        
        
        
Answer:
The power in this flow is 
Explanation:
Given that,
Distance = 221 m
Power output = 680 MW
Height =150 m
Average flow rate = 650 m³/s
Suppose we need to calculate the power in this flow in watt
We need to calculate the pressure
Using formula of pressure

Where,  = density
= density
h = height
g = acceleration due to gravity
Put the value into the formula


We need to calculate the power
Using formula of power

Put the value into the formula


Hence, The power in this flow is 