Identical masses m are attached to identical springs of spring ...

[tnt_battle]

Identical masses m are attached to identical springs of spring constant k suspended from the ceiling. With both masses hanging in their equilibrium positions, mass A is pulled down 10 cm and released while mass B is pushed up 10 cm and released. Which statement is correct?
 a. Mass A will travel a smaller distance to its highest point than mass B will travel to its lowest point.
  b. Mass A will travel a greater distance to its highest point than mass B will travel to its lowest point.
  c. Masses A and B will travel equal distances between their highest and lowest points.
  d. More work was done on mass A by the extending force than on mass B by the compressing force.
  e. The total work done on mass A by the extending force was equal to the total work done on mass B by the compressing force.

Question 2

In radiometric dating the older the rock, the
  greater the ratio of
  a) large grain size to small grain size.
  b) index fossils to regular fossils.
  c) stable daughter to radioactive parent nuclide.
  d) non-radioactive material to radioactive material.

[ebenov]

Answer to Question 1

c

Answer to Question 2

c

[tnt_battle]

Thank you!

[ebenov]

Always glad to help...