Author Question: One of the major difficulties in developing nuclear fusion as a possible source of continuous energy ... (Read 52 times)

neverstopbelieb · **on:** Aug 27, 2018

One of the major difficulties in developing nuclear fusion as a possible source of continuous energy is that temperatures of ________ are needed to initiate fusion reactions.

A) 0 K
B) 300C
C) 5000C
D) over 100,000,000C

Question 2

The mass of a helium nucleus is slightly less than the sum of its parts (2 protons and 2 neutrons) because

A) some of the mass is converted to binding energy.
B) some of the mass is given to electrons.
C) the mass of protons and neutrons are not precisely known.
D) the mass of a proton is larger than the mass of a neutron.