EXERCISE An iron rod has 3.48 x 10-19 free electrons of which
70% are directed to move due east for a period of
12s. The rest however move randomly in the iron.
(a) Calculate the current produced,
(b) In what direction is the current flowing? (Charge
of electron, e = 1.6 x 10-19C)​

If a robot fixed another robot is it a engineer or doctor?

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.

2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms