Answer asap i'm on the
astronauts brought the moon to study.
a. terrea
b. maria
c. regolith
d. umbra
what is a planned goal of the exploration mission 2?
a. to explore the conditions of jupiteis moon
b. to explore the rings of satum
c. to explore the composition of mars
d. to land a man on the moon

To create electromagnetic induction, which of the following has to move? a. a wire b. a magnet c. a transformer d. either a or b

Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy

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.