Where should the fulcrum be located in this lever to get the greatest mechanical advantage?
a) at position ii, because the effort arm and the load arm should have equal lengths
b) at position iv, because the effort should be applied as close to the fulcrum as possible
c) at position i, because the length of the effort arm should be greater than the length of the load arm
d) at position iii, because the length of the load arm should be greater than the length of the effort arm

Use the table to answer question 22 23 and 24.

Two thin 80.0- cm rods are oriented at right angles to each other. each rod has one end at the origin of the coordinates, and one of them extends along the x- axis while the other extends along the yaxis. the rod along the x- axis carries a charge of - 15.0 μ c distributed uniformly along its length, and the other rod carries 15.0 μ c uniformly over its length. find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e

Which feature of a heating curve indicates a change ofn state