Consider a cube-shaped object. to shear it, equal but oppositely directed forces might be applied: to opposite faces, perpendicular to the faces to adjacent faces, as long as the force is not perpendicular or parallel to the faces to opposite faces, parallel to the faces to adjacent faces, perpendicular to the faces to a single face, in any direction (you don't need two only one is required for shear)

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.

helium

oxygen

neon

sodium

the given statement is true.

sensory memory lasts for a fraction of seconds before the information is lost. it is the shortest -term memory and can be called as an element of memory. example: when we look at something and remember what it looks like, is just a second of observation. it degrades very quickly. it can also be considered as the process of perception rather than considering it as a memory.