Author Question: Near our planet Earth are A) cosmic rays. B) magnetic fields. C) both of these D) none of the ... (Read 31 times)

olgavictoria · **on:** Jul 29, 2018

Near our planet Earth are

A) cosmic rays.
B) magnetic fields.
C) both of these
D) none of the above

Question 2

A thermally isolated system is made up of a hot piece of aluminum and a cold piece of copper; the aluminum and the copper are in thermal contact. The specific heat of aluminum is more than double that of copper.

Which object experiences the greater temperature change during the time the system takes to reach thermal equilibrium? A) The copper experiences a greater temperature change.
B) The aluminum experiences a greater temperature change.
C) Neither; both objects experience the same magnitude temperature change.
D) It is impossible to tell without knowing the masses.
E) It is impossible to tell without knowing the volumes.