1. if you rub a neutral glass rod with silk, the silk acquires a negative charge.if you rub a neutral glass rob with a rubber rob, the rubber rod acquired a negative charge.If you rub a neutral rubber rod with silk the rubber rob acquired a negative charge. Which of the three materials know?
2. You are wandering around the park on a cold winter day in january. There are two benches— one is made from metal and one is made from wood. Which bench would not feel as cold?How do you know

Question

14-01-2019
Physics

contestada

1. if you rub a neutral glass rod with silk, the silk acquires a negative charge.if you rub a neutral glass rob with a rubber rob, the rubber rod acquired a negative charge.If you rub a neutral rubber rod with silk the rubber rob acquired a negative charge. Which of the three materials know?
2. You are wandering around the park on a cold winter day in january. There are two benches— one is made from metal and one is made from wood. Which bench would not feel as cold?How do you know

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lidaralbany lidaralbany · Answer 1 · 2019-01-23T08:50:40+01:00

1. Answer : Silk, neutral glass rod and neutral rubber rod.

Explanation : if you rub a neutral glass rod with silk, the silk acquires a negative charge.if you rub a neutral glass rob with a rubber rob, the rubber rod acquired a negative charge.If you rub a neutral rubber rod with silk the rubber rob acquired a negative charge.

Then we can see that use of only silk, glass rod and rubber rod in this work.

2. Answer : wood bench would not feel as cold.

Explanation : wood bench would not feel as cold. because metals feel colder or hotter to the touch than other materials at the same temperature because they're good thermal conductors. wood is a thermal insulator which is don't transfer of heat easily.