PLEASE HELP QUICK ASAP HURRY This is Earth Science
Which example is not a biomass energy source?
A. Paper
B. sun
C. manure
D. wood chips
Question 5
Which example is a biomass energy source?
A. corn
B. water
C. wind
D. petroleum

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.