A point charge Q resides at the origin. A particle of mass 0.001 kg carries a charge of 3 µC. The particle is released from rest at x = 2 m, and its kinetic energy as it passes x = 0.5 m is 0.36 J. Find the charge Q. The Coulomb constant is 8.98755 × 109 N · m 2 /C 2 . Answer in units of µC.

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.