A proton (mass m = 1.67 × 10-27 kg) is being accelerated along a straight line at 2.90 × 1013 m/s2 in a machine. If the proton has an initial speed of 2.00 × 105 m/s and travels 1.80 cm, what then is (a) its speed and (b) the increase in its kinetic energy?

Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)