When reggie stepped up to the plate and hit a .15 kg fast ball traveling at 36m/s the impact caused the ball to leave his bat with a velocity of 45m/s in the oppsite direction. if the impact lasted 0.0020s, what force did reggie exert on the ball

Assuming the initial direction of motion before impact as negative and final direction of motion as positive.

m = mass of the ball being hit = 0.15 kg

v₀ = initial velocity of the ball before the impact = - 36 m/s

v = final velocity of the ball after impact = 45 m/s

t = time of impact = 0.0020 s

F = force Reggie exerted on the ball

Using Impulse-change in momentum equation

F t = m (v - v₀)

F (0.0020) = (0.15) (45 - (- 36))

F = 6075 N

i dont think you are wrong for wanting to get even with someone who did you wrong.

(i'm an eye for an eye kind of person) but if this person hurt you in a sexual way, i dont suggest doing anything to him. he should be taken to the proper authorities, you could go to jail depending on what you do. if it was something small like your sibling took your spot on the couch, than yea, i would get even with him by taking one of his favorite snacks lol. but i dont suggest you doing anything illegal.

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods