Mathematics, 24.01.2020 10:31 CameronVand21

gary and devonte are doing an experiment with an electroscope. they bring a negatively charged rod close to the top of a charged electroscope. the two metal pieces of the electroscope were spread apart already, but now they move farther away from each other. gary says that the experiment proves that the electroscope had a negative charge before they started experiment, but devonte disagrees and said it must have had a positive charge since the metal pieces moved farther away. who is right and why?

the electroscope had a positive charge before the experiment started. the negatively charged rod attracts the electrons in the electroscope and makes the metal pieces spread further apart.

the electroscope had a positive charge before the experiment started. the negatively charged rod repels protons and makes the metal pieces spread further apart.

the electroscope had a negative charge before the experiment started. when the negatively charged rod comes near the electroscope more electrons are repelled down to the metal pieces and the metal pieces move farther away from each other.

the electroscope had a negative charge before the experiment started. the negatively charged rod attracts electrons and causes the metal pieces to move further apart.

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 20:00

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

Answers: 1

Answer

Mathematics, 21.06.2019 21:30

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis

Answers: 2

Answer

Mathematics, 22.06.2019 01:00

Determine the intercepts of the line that passes through the following points. (15,-3)(15,−3) (20,-5)(20,−5) (25,-7)(25,−7)

Answers: 1

Answer

Mathematics, 22.06.2019 01:30

Write 37/22 as a decimal rounded to the nearest hundredth.

Answers: 2

Answer

You know the right answer?

gary and devonte are doing an experiment with an electroscope. they bring a negatively charged rod c...