Technological design leads to the development and innovation of new technologies.
which statements represent innovation? check all that apply.
solar panels have increased in efficiency over the past 20 years.
the sun is the primary source of energy for the solar system.
alternative energy sources are one method for meeting energy needs.
amore aerodynamic automobile uses less fuel.
natural selection ensures that only the fittest survive.

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.