Answer:Electromagnetic Energy Example One
activity: cellphones
type of electromagnetic: radio waves 
description: we all use our phones to make phone calls and to send a text!
 Electromagnetic Energy Example two
activity: microwave 
type of electromagnetic: microwave radiation
description: The microwave radiation is absorbed by water molecules in the food which converts to heat intern heats the food do to high levels of radiation being emitted into the food!  
Explanation:
i hope this helps you sorry if it doesn't 
 
        
             
        
        
        
Answer:
Explanation:
a ) Slit separation d = .1 x 10⁻³ m
Screen distance D = 4 m
wave length of light  λ = 650 x 10⁻⁹ m
Width of central fringe = λ D / d
= 
= 26 mm
b ) Distance between 1 st and 2 nd bright fringe will be equal to width of dark fringe which will also be equal to 26 mm
c ) Angular separation between the central maximum and 1 st order maximum will be equal to angular width of fringe which is equal to
λ  / d
= 
= 6.5 x 10⁻³ radian.
 
        
             
        
        
        
Answer:
A "fixed price" energy tariff means that your unit price for gas and electricity will not change for the duration of the plan. A variable rate means your energy price can vary during the plan. If you have a fixed price plan and your supplier announces a price rise, your rates will not change.
Explanation: Google