(need immediate /offering 20 points) you use a wedge that has a width of 1.1 in and a slope length of 3.3 in. what is the mechanical advantage of this wedge?

a. 2.2
b. 3
c. 4.5
d. 0.33

You carry a 7.0-kg bag of groceries 1.2 m above the ground at constant speed across a 2.7m room. how much work do you do on the bag in the process? (a) 157j (b) 0.00j (c) 185j (d) 82j

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two