A drop of water has an electric charge of -1.6 x 10^-16 C. How many excess electrons does this drop of water have?! (Let the elemental charge: 1,6.10^-19)
a) 100
b) 300
c)625
d) 1000
e)1600

if you steal my POINTS you will be reported

The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.

The discovery of the electron as a subatomic particle was a result of

An electric power distributor charges residential customers $0.10 per kilowatt-hour (kwh). the company advertises that "green power" is available in 150 kwh blocks for an additional $4 per month. (green power is generated from solar, wind power, and methane sources.) if a certain customer uses an average of 391 kwh per month and commits to one monthly 150 kwh block of green power, what is her annual power bill