An electron and a proton are each accelerated starting from rest through a potential difference of 20.0 million volts. find the momentum (in mev/c) and the kinetic energy (in mev) of each, and compare with the results of using the classical formulas. (give your answers to at least four significant figures.)

Note: the following questions are unrelated to the balmer series or the martian. refer to your course notes. a sun-sized star will spend most of its lifetime as a: white dwarf b. red giant c. protostar d. main-sequence star

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value