You are in the bleachers at the world series and a game winning baseball (mass 0.15 kg) approaches at 28 m/s. you want to catch it, but you don't want to hurt your had since that might impede your ability to do physics homework. to lessen the impact you slow it down with your hand over a displacement of 0.8 m as you catch it. what external work must you do on the baseball in j?

Acertain half-reaction has a standard reduction potential e_red^0 = -0.94 v. an engineer proposes using this half-reaction at the cathode of a galvanic cell that e must provide at least 1.00 v of electrical power. the cell will operate under standard conditions. a. is there a minimum standard reduction potential that the half-reaction used at the anode of this cell can have? b. is there a maximum standard reduction potential that the half-reaction used at the anode of this cell can have?