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

Amarble, a bowling ball, a basketball, and a baseball are rolling across the floor at 10 m/s. which one has the greatest kinetic energy? the marble the bowling ball the basketball the baseball

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

What is a carrier wave and how does it affect what you hear on the radio