Which of the following is an example of projectile motion?
A. A bullet shot from a gun
B. A book laying on a
desk
C. A feather falling in a
vacuum
D. A car driving up a
mountain
gun

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

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

Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow