What simple machine is a stake board?

Will aluminum contaminate stainless steel if used together? What year did Cyrus mcCormick invent the reaper? If a dc generator delivers 180 Watts to a load what is the minimum hp needed to drive the generator? How do you percent getting an std? What invention had the greatest impact on the environment? What best represents the consequences of the 1845 decision by Congress to annex Texas? What is difference between c and pro c? How do you get the level 60 gear in wizard101? Why was the hills hoist invented? What is first step that both scientists and engineers use to approach a problem? If you were going to replace water as the coolant in an engine would you look for something with a higher or lower specific heat? What is the maximum flow of water through a 3 pipe? What is integer in visual basic? How do you write a c program to generate first n natural numbers using a for loop? Which dna strand is complementary to cga atc agc? What is servlet cookies in java programming? What causes translation to stop? Can schedule 40 plastic pipe be used above ground with naural gas? What is the astm equivalent of x32c13? What is a valid variable data type?