4.20. find the particular solution to the heat equation on a rod x 2 [0; p] with d = 1, and zero-temperature endpoints with a source r=kc = sin(x) and initial condition f (x) = 2sin(x).

Name two kinds of practical electric pumps.

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.