You are walking toward the back of a bus that is moving forward with a constant velocity. describe your motion relative to the bus and relative to a point on the ground.

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c