Describe how air pressure is exerted on objects.

If this plastic cup is heated to its melting point, what will eventually happen to all the particles in the plastic? a. the particles will begin to move enough that they slide past each other. b. bonds will form and the liquid will become a solid. c. the spaces between the particles will get smaller. d. the particles will change state and become a crystalline solid.

Describe the path of a ray that approaches a mirror parallel to the principal axis.

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground