Express the vector r~ a b c d p r in terms of a~ , b~ , c~ , and d~ , the edges of a parallelogram. 1. r~ = c~ + d~ 2. r~ = a~ − b~ 3. r~ = a~ − c~ 4. r~ = a~ + d~ 5. r~ = b~ + d~ 6. r~ = b~ − a~ 7. r~ = a~ − d~ 8. r~ = b~ + a~ 9. r~ = d~ − a~ 10. r~ = c~ + b

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

increases it

2b2t

explanation:

2b2t