A particle undergoes two displacements. The first has a magnitude of 199 cm and makes an angle of 149 degrees with a positive x axis. The resultant displacement has a magnitude of 115 cm and is directed at an angle of 32.1 degrees to the positive x axis. Find the magnitude of the second displacement. Answer in units of cm.

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

What occurs during a combustion reaction

In an experiment, how can i change human errors? be specific.