Determine the partial pressures of a spacecraft atmosphere at 10 psi total pressure which is:
a)78% nitrogen
b) 21% oxygen
assume the partial pressure of exhausted carbon dioxide is just at the maximum allowable level according to nasa, 1995b.
the rest of the atmosphere is made up of trace gases

Which statement best describes how private industry decides where to spend the money on research and development

The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire