A 400 kg bear is motionless on a 30 degree angle hill. What is the force acting on the bear? What is the x component? What is the y component? What is the normal force? What is the friction force?

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.