The chart below shows four identical wagans loaded with different amounts of bricks. Wagon w
Wagon X
Wagon Y
Wagon z
two pounds of bricks
three pounds of bricks
four pounds of bricks
five pounds of bricks
It the same amount of effort is applied to all four identical wagons, why would Wagon W move farthest?
A It has the least amount of mass, affecting its motion.
B It has the least amount of speed, affecting its motion.
CIt has the greatest amount of gravity, affecting its motion.
D. It has the greatest amount of friction, affecting its motion

Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.

A10 kg box initially at rest is pulled 18 meters across a horizontal, frictionless surface by a 40 n force. what is the block’s final velocity over the 18 meters?

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".