A person is pushing a box across a table. The measured forces on the box are 10N, 14N, -7N, -10N. Which force is represented by -7N?

force of friction
normal force
force of gravity
push force

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

Compare and contrast refraction of light and sound will give brainliest

As light moves from one material into the next, which of the following affects how much the light waves will refract, or bend? angle at which the ray strikes the medium color of the material density of the material temperature of the light wave