Physics
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A sparrow's heart, at each heartbeat accelerates about 30 g of blood from 0.45 m/s to 0.65 m/s within 0.20 s. What is the force applied by the sparrow's heart muscle?
1.0 × 10-3 N
2.0 × 10-2 N
3.0 × 10-2 N
4.0 × 10-3 N