Gravity attracts an object to A.
Earth's magnetic poles
B.
Earth's surface
C.
Earth's equator
D.
Earth's center

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created or , but it can be

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

What does si stand for, when referring to a system of measurement