Deuterium a. can become part of a molecule called heavy water. b. is an isotope of hydrogen. c. consists of one proton and one neutron. d. is stable. e. all of the above

Deuterium is also known as heavy hydrogen and takes the symbol 2H. What makes this heavy is due to the additional neutron present in it. Therefore, everything that is being mentioned above as the description of deuterium is applicable. Therefore, the answer would be option E: All of the above. Hope this helps.

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j