Ice algae Which of the following shows the correct order of organisms according to their
role in recycling of matter in the food web?
A.
B.
fish - seal – polar bear
bacteria – fish - seal
ice algae – krill – fish
krill – fish — bacteria
C.
D.

Auniform electric field exists in the region between two oppositely charged plane parallel plates separated by a distance of 1.60 cm . a proton is released from rest at the surface of the positively charged plate and strikes the surface of the opposite plate in a time interval of 3.20×10-6 s. 1-find the magnitude of the electric field. use 1.60×10-19c for the magnitude of the charge on an electron and 1.67×10-27kg for the mass of a proton 2-find the speed of the proton when it strikes the negatively charged plate