A wheel and axle is a type of simple machine that consists of a large object (the wheel) that surrounds and turns a smaller object (the axle).
Which of the following is an example of a wheel and axle?
OA. steering wheel
ОВ.
screwdriver
OC.
doorknob
D.
all of these

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages