Which element will normally loose electrons when undergoing ionic bonding? A. Aluminum because it has two valence electrons.
B. Carbon because it has four valence electrons.
C. Chlorine because it has seven valence electrons.
D. Argon because it has eight valence electrons.

Which seasons are the northern and southern hemispheres experiencing in the image? it is summer in both the northern and southern hemispheres. it is summer in the northern hemisphere and winter in the southern hemisphere. it is winter in both the northern and southern hemispheres. it is winter in the northern hemisphere and summer in the southern hemisphere.

Determine the maximum r-value of the polar equation r =3+3 cos 0

The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.