Question

Suppose a defibrillator successfully returns a baby's heart to normal beating. Suppose further that 20 g of blood enters the heart at 25 cm/s and leaves 0.10 s later at 35 cm/s. What is the estimated average force on the 20 g of blood as it moves through the baby's heart?

Answer 1

The estimated average force on the 20 g of blood as it moves through the baby's heart can be calculated using the equation Force = Change in momentum / Change in time. Solving this equation will give us the estimated average force on the blood as it moves through the baby's heart.

Step-by-step explanation:

The estimated average force on the 20 g of blood as it moves through the baby's heart can be calculated using the equation:

Force = Change in momentum / Change in time

First, we need to calculate the initial momentum of the blood, which is the product of its mass and velocity:

Initial momentum = (20 g) * (25 cm/s)

Next, we need to calculate the final momentum of the blood, which is the product of its mass and velocity:

Final momentum = (20 g) * (35 cm/s)

Finally, we can substitute the values into the formula to calculate the average force:

Average force = (Final momentum - Initial momentum) / (Change in time)

Solving this equation will give us the estimated average force on the blood as it moves through the baby's heart.