How can a machine make work easier for you?

a. by decreasing the amount of work you do on an object
b. by changing the direction of your applied force
c. by increasing the the work done by the machine
d. none of the above

i think maybe a. but i'm leaning towards d.

The correct answer is B- by changing the direction of your force

1.B 2.C 3.B 4.D 5.B 6.C

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

powerful computers now, not then