Two technicians were discussing the problems that are likely to occur if the brake hydraulic system is not air free. technician a stated that the brakes will not operate correctly if the brake hydraulic system is not air free. technician b stated that the driver will feel a spongy brake pedal that is often lower than normal if the brake hydraulic system is not air free. which technician is correct?

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f

Which levels of government establish and implement educational requirements for minors