Answer:
B
Explanation:
The jury is the one with authority to decide on the case
Answer:
b) electrons jump onto or off the neutral ball when a charged object comes close
Explanation:
What causes a pithball to move is when "electrons jump onto or off the neutral ball when a charged object comes close".
The pithball electroscope is actually used to test if a body is charged or not. When a charged body is brought near the pithball, the ball moves. The movement of that charged body reveal that there are electrons it is carrying.
The pithball can actually be charged. It is charged by touching a charged object to it. This leads to some of the charges on the surface of the charged object moving to the surface of the ball. The pith-ball electroscope was invented by John Canton, a British schoolmaster and physicist in 1754.
Answer:
"Tackling the global shortfall in radiotherapy could save millions of lives and boost the economy of poorer countries: Investment in radiotherapy services could bring economic benefits of up to $365 billion in developing countries over the next 20 years." ScienceDaily.