A very important type of radioactive decay process in nuclear reactors is one in which fission products decay by neutron emission since such processes strongly influence the time behavior of the fission chain reaction. The slowest such decay process in most reactors is one characterized by a decay constant of 0.0126 sec-1. Assuming that such a process controls the rate at which one can decrease the power level of a reactor, calculate the tin*e necessary to decrease the reactor power level from 3800 MW (thermal) to 10 MW (thermal).

Which lists the organs in the correct order as food passes from the mouth to anus?

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.