Calculate the equivalent resistance of the following circuit:

Req =

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

Does heating a metal wire increase or decrease its electrical resistance? why?

Which describes an object in projectile motion? check all that apply.a.gravity acts to pull the object downb.the object moves in a straight path.c.the forward velocity of the object is 0 m/s.d.the object’s inertia carries it forward.e.the path of the object is curved.