Final answer:
The net force with which the pitcher throws the baseball is 9.842 N.
Step-by-step explanation:
The net force with which the pitcher throws the ball can be calculated using the equation:
Force = Mass x Acceleration
First, we need to convert the mass of the ball from grams to kilograms: 140 g = 0.14 kg
Now, substituting the values into the equation, we get:
Force = 0.14 kg x 70.3 m/s^2 = 9.842 N
Therefore, the net force with which the pitcher throws the ball is 9.842 N.