<span>All are used in relief printing except a gouge "D". A gouge is a concave bladed chisel used in sculpting. Lead can be the medium that the relief is in. Paper is the material that the final print is on. A mat knife is the blade used to cut the paper to the appropriate size.</span>
Answer:
The speed of an electron is 0.01908 m/s.
Explanation:
De-Broglie wavelength is given by:

where,
= wavelength of a particle
h = Planck's constant = 
m = mass of particle
v = velocity of the particle
Velocity of an electron = v
Mass of an electron = 
Wavelength of electron is twice the displacement in seconds which is velocity of an electron.
Then.wavelength of an electron = 

v = 0.01908 m/s
The speed of an electron is 0.01908 m/s.
Answer:
<em><u>Fermentation: Single-celled microorganisms called yeast are added to the slurry. Fermentation is the biochemical process that occurs when yeast break down glucose. Yeast gets energy from glucose. As a result, ethanol is produced.</u></em>
<em><u>MARK </u></em><em><u>ME </u></em><em><u>BRAINLIST</u></em>
Extrusive Rocks. Igneous rocks which form by the crystallization of magma at the surface of the Earth are called extrusive rocks. They are characterized by fine-grained textures because their rapid cooling at or near the surface did not provide enough time for large crystals to grow.