41. Over time, the exponential decay acts to distribute the values at these points evenly throughout the entire grid. 42. In simple cases, an exponential decay is measured which is described by the " T " 2 time. 43. It is expected that the system will experience exponential decay with time in the temperature of a body. 44. That is, the change from one filter output to the next is exponential decay seen in the continuous-time system. 45. This is an exponential decay process that steadily decreases the proportion of the remaining isotope by 50 % every half-life. 46. This overestimation is visible at distances less than half the Debye length, where the decay is steeper than exponential decay . 47. As a consequence, in the crystal these states are characterized by an imaginary wavenumber leading to an exponential decay into the bulk. 48. Prior to wave reflection, they both are characterized by a steep wave front followed by a nearly exponential decay at close distances. 49. It is expected that the system will experience exponential decay in the temperature difference of body and surroundings as a function of time. 50. Now compute the number of atoms that are left after one hour using the exponential decay formula slightly above in the same article.