Answer:

Explanation:
The energy of a photon is given by:

where
h is the Planck constant
c is the speed of light
is the wavelength of the photon
In this problem, we have a microwave photon with wavelength

Substituting into the equation, we find its energy:

Answer:
a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.
Explanation:
Answer: 24 hours
Explanation: One day is one rotation of the Earth, but it takes the earth 365 days to do one revolution or one year
Answer:
increase by 8 percent
Explanation:
<em>Price elasticity of supply of a product is the degree of responsiveness of supply of that product to a change in price.</em> Simply put:
Price Elasticity of supply = change in quantity supply/ change in price.
In this case, price elasticity of supply of gasoline = 0.4
Percentage price increase = 20 percent.
Hence,
0.4 = change in supply/20
Change in supply = 20 x 0.4 = 8 percent
<em>Therefore, the quantity supply of gasoline will increase by 8 percent</em>