What term describes the ability of the heart and lungs to supply oxygen to the muscles for a long period of time? question 1 options: flexibility

In the graph, each sinusoidal curve shows the shape of a vibrating string at a different moment. for which values of x does a node occur? (let k = an integer from -2 to +2.) k + 0.5 0.5k k 2k + 1.5