ASTR 101 Lecture 66: decomposition and matrix inversion

according to the uncertainty principle, which of the following statements is true?

a) It is impossible to simultaneously determine both the position and the momentum of a particle with arbitrary accuracy.

b) It is impossible to simultaneously determine both the energy and the momentum of a particle with arbitrary accuracy.

c) It is impossible to measure the position of a particle with arbitrary accuracy in a finite amount of time.

d) It is impossible to simultaneously measure both the energy and position of a particle with arbitrary accuracy.

e) It is impossible to determine a particle's energy with arbitrary accuracy in a finite amount of time.

Which of the following statements about degeneracy pressure is not true?

A. Degeneracy pressure varies with the temperature of the star

B. Degeneracy pressure can halt gravitational contraction of a star even when no fusion is occurring

C. Degeneracy pressure keeps any protostar less than 0.08 solar mass from becoming a true hydrogen-fusing star

D. Degeneracy pressure supports white dwarfs under gravity

The jovian moon with the most geologically active surface is