Italian physicist Alessandro Volta discovered that particular chemical reactions could produce electricity, and in 1800 he constructed the voltaic pile (an early electric battery) that produced a steady electric current, and so he was the first person to create a steady flow of electrical charge.
Answer: The force constant of the spring is 116.1N/m
Explanation: Please see the attachments below
There were 2 people
Tomas Edison
Joseph Swan
Tomas Edison invented the first practical incandescent lightbulb.
Sir Joseph Swan is most famous for his role in the development of the first incandescent lightbulb.