According to a simplified model of a mammalian heart, at each pulse approximately 20 g of blood is accelerated from 0.22 m/s to 0.36 m/s during a period of 0.12 s. Part A What is the magnitude of the force exerted by the heart muscle? Express your answer to two significant figures and include the appropriate F= 0.02 N Submit Previous Answers Request Answer ? Incorrect; Try Again; 2 attempts remaining Provide Feedback