Answer:
and 
and 
Explanation:
= Wavelength
= Angle
m = Order
Distance between grating is given by


We have the relation

m = 1

m = 2

The first and second order angular deflection is
and 

m = 1

m = 2

The first and second order angular deflection is
and
.
Answer:
C.
Explanation:
We know that the magnetic moment of electron is in same direction as it's spin so it's spin flip from down to up.
The correct answer is C that is . It flips from spin down to spin up.
Answer:
Acid rain results when sulfur dioxide (SO2) and nitrogen oxides (NOX) are emitted into the atmosphere and transported by wind and air currents. The SO2 and NOX react with water, oxygen, and other chemicals to form sulfuric and nitric acids. These then mix with water and other materials before falling to the ground.
Explanation:
We can find the x-component of the force vector, so Fx = 25N(cos30). Then, we can sub this into the work equation W = Fs or W = Fd.
Therefore, W = (25N(cos30))(3m) = 64.95 J.
With sig figs, it is 60 J.