Author Question: What must you do to get away from the harmful effects of radioactivity? A) live at the North or ... (Read 60 times)

neverstopbelieb · **on:** Jul 29, 2018

What must you do to get away from the harmful effects of radioactivity?

A) live at the North or South Poles.
B) go deep beneath Earth's surface.
C) go to the Moon.
D) die.

Question 2

How do the escape velocities for two rockets, the first weighing 20 N and the second weighing 20,000 N compare?

A) The escape velocity for the lighter rocket is smaller than that for the heavier rocket.
B) The escape velocity for the lighter rocket is the same as that for the heavier rocket.
C) The escape velocity for the lighter rocket is greater than that for the heavier rocket.
D) It is impossible to compare the two escape velocities.