You are at the controls of a particle accelerator, sending beam of 2.70*10^7 m/s protons (mass m) at a gas target of an unknown element. Your detector tells you that some protons bounce straight back after a collision with one of the nuclei of the unknown element. All such protons rebound with a...
sorry
Sorry about not showing all the work.
I just take the givens: v=41.0 m/s m=0.142 kg
Then I plug it in to: \frac{m*v^2}{2}
\frac{41*0.142}{2}
That is the answer i come up with (2.911 Joules)
A baseball leaves a pitcher's hand at a speed of 41.0 m/s. The mass of the baseball is 0.142 kg . Ignore air resistance. How much work has the pitcher done on the ball in throwing it?
I've tried using (1/2)mv^2, but there has got to be something weird going on, or i could just be using the...