An airplane traveling north at 220. meters per second encounters a 50.0-meters-per-second crosswind from west to east what is the resultant speed of the plane?

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.

Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?