An eagle has a forward force due to its wings of 6 N. The drag force of the air is 4 N backwards, and its lift force and force of gravity are 20 N upwards and downwards, respectively. What is the net force on the bird? A. 30 N B. 1 N forwards C. 2 N forwards D. 2 N backwards

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

What is the major limitation to the light microscope?

Suppose that f : rn → rm and that a ∈ k, where k is a connected subset of rn . suppose further that for each x ∈ k there exists a δx > 0 such that f(x) = f(y) for all y ∈ bδx (x). prove that f is constant on k; that is, f(x) = f(a) for all x ∈ k