v Chapter 4 Measurements of with, and in the Presence of Noise. 加速度与外力成正比,并且方向相同 y The acceleration is directly proportional to, and in the same direction as, the applied force. 我们想要求出提供给这个器件或出它消耗的平均功率。 y It is desired to find out the average power provided for or dissipated by this device. Chapter 4 Measurements of, with, and in the Presence of Noise. 加速度与外力成正比，并且方向相同  The acceleration is directly proportional to, and in the same direction as, the applied force. 我们想要求出提供给这个器件或由它消耗的平均功率。  It is desired to find out the average power provided for or dissipated by this device