When performing one-dimensional graphical vector addition on two vectors, what is the proper starting position for each of the
two arrows representing the two forces being combined?

What is the stall speed at sea level of an airplane that weights 10000 lbs., has a wing area of 300ft^2, and a maximum lift coefficient of 1.4? what is the stall speed if flaps that double cl,max are applied?

This is the number of complete movements of a wave per second.

Find the mass by adding the numbers from the three sliders