When creating images in plane mirrors, a student draws two sets of incident rays and reflected rays with the corresponding normals. After labelling all angles, the student draws
dotted lines to form an image. When comparing the object and the image, the student notices
that no image was formed. Explain what error the student made and why no image was formed.

What is the weight of a 8-kg substance in n, kn, kg·m/s2, kgf, lbm·ft/s2, and lbf?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?