An electron is released from rest at the negative plate of a parallel plate capacitor. the charge per unit area on each plate is σ = 1.99 x 10^-7 c/m^2, and the plate separation is 1.69 x 10^-2 m. how fast is the electron moving just before it reaches the positive plate?

What type of nuclear decay causes the atomic number of an element to increase by 1?

Steam is generated in a boiler of a cogeneration plant at 10 mpa and 450°c at a steady rate of 5 kg/s. in normal operation, steam expands in a turbine to a pressure of 0.5 mpa and is then routed to the process heater, where it supplies the process heat. steam leaves the process heater as a saturated liquid and is pumped to the boiler pressure. in this mode, no steam passes through a condenser, which operates at 20 kpa. (a) determine the power produced in the turbine and the rate at which process heat is supplied in this mode. (b) determine the power produced in the turbine and the rate of process heat supplied if only 60 percent of the steam is routed to the process heater and the remainder is expanded to the condenser pressure. (3.32 mw; 9.69 mw; 4.25 mw; 5.82 mw)

If steel is more dense that lake water, why can a boat float