Two forces act on a 55-kg box on a smooth level path. One force has magnitude 50 n directed 45° clockwise from the positive x-axis, and the other has a magnitude 50 n at 45° counter-clockwise from the positive x-axis. What is the net force along the y-axis?

Which of the following ideas did greek philosopher democritus contribute to the atomic theory? a. each object is made up of one atom, which varies in size from very small to very large. b. matter is composed of only one kind of particle, which can be easily destroyed. c. every element has a specific type of atom, which remains the same size in all forms of matter. d. all matter is composed of small particles, which combine to make larger objects.