The reason neutrinos are so penetrating is that A) they are ...

[tth]

The reason neutrinos are so penetrating is that
 
  A) they are very heavy.
  B) they feel only strong nuclear force, and gravity.
  C) they are very light.
  D) they feel only the weak nuclear force, and gravity.
  E) they move so fast.

Question 2

A mass on a spring undergoes SHM. When the mass is at its maximum distance from the equilibrium position, which of the following statements about it are true? (There could be more than one correct choice.)
 
  A) Its elastic potential energy is zero.
  B) Its acceleration is zero.
  C) Its speed is zero.
  D) Its total mechanical energy is zero.
  E) Its kinetic energy is a maximum.

[b614102004]

Answer to Question 1

D

Answer to Question 2

C

[tth]

Thank you!

[b614102004]

Always glad to help...