Which statement about friction is true?

1. Friction increases the speed of objects in motion.

2. Friction acts in a direction opposite to an object's motion.

3. Friction between objects depends solely on the types of surfaces involved

Nicolaus Copernicus believed that the: sun revolved around the earth sun was the center of the solar system movement of planets could explain weather stars and planets represented spirits

Describe the orbital diagram of an atom with 16 electrons

What doesnt change despite what planet you're on

The term sustainable living is often referred to as which of the following? A. green living B. active lifestyle C. healthy lifestyle D. meat-free living

Which shows a way to represent a single covalent bond between atoms a) H+H b) H-H c) H/H

Recently, some information about a distant planet was learned. It has a radius of 6000000 meters, and the density of the atmosphere as a function of the height h (in meters) above the surface of the planet is given by δ (h) =

Which of the following is not a good approximation of the relationship between independent and dependent variables? A. independent: first, dependent: next B. independent: input, dependent: output C. independent: cause, dependent: effect D.

A force is applied to a 13.0 kg wagon to pull it down the sidewalk at a constant speed. The coefficient of kinetic friction is 0.65. Considering the resulting frictional force, what is the magnitude of the applied force?

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planers in orbit around the Sun.

What wave-like property of light causes it to bend when encountering an opening? A. Reflection B. all the above c. Refraction d. none of the above e. diffraction