Fiona is a 35-year-old woman competing in a triathlon. Her heart rate while swimming is 138 beats/minute, while cycling is 140 beats/minute, and while running is 144 beats/minute. Which of the following calculations would allow Fiona to calculate her MaxHR? MaxHR = 220+138
MaxHR = 220-35
MaxHR = 138-35
MaxHR = 144+35

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

In a good thermo flask the main cause of heat loss is

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