Aria has designed a laboratory apparatus which can be used to decelerate certain charged particles moving at high speeds. While calibrating the apparatus, Aria sends an ion with 11 protons, 9 neutrons, and 5 electrons into it. The ion
enters with a speed of 2.02 x 10 m/s and exits with a speed of 7.54 x 104 m/s.
If the ion is traveling in the +y direction, and the apparatus is 2.58 m across, calculate the magnitude and direction of the
electric field inside the apparatus.
Write your result in unit vector notation, assuming units of Newtons per Coulomb.

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)

What are atoms of the same element with varying number of neutrons

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?