With the ability to measure the motion of land masses, continental drift has become an established fact. The North American and European continents are drifting apart at a rate of about 3 cm/yr. At this rate how long will it take them to drift 750 km further apart than at present?

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

answer; how far out of place which the object finished relative to the starting location;

490 n

f=125n a=2.5m/s2

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.