dimensional analysis (Please help as soon as possible!) The Space Shutte astronauts use a massing chair to measure their mass. The chair is attached to a spring and is free to oscillate back and forth. The frequency of the oscillation is measured and that is used to calculate the total mass m attached to the spring. If the spring constant k is measured in kg/s^2 and the chairs frequency f is .50s^-1 for a 62-kg astronaut, what is the chair's frequency for a 75-kg astronaut? The chair itself has a mass of 10.0 kg. [Hint: use dimensional analysis to find out how f depends on m and k.] Could you please explain how to work this problem step by step, because i have no clue how to even begin, thank you.