Physics, 15.06.2021 20:30 niyahdabadest

1 - What is the formula to calculate cost? 2 - What is the formula to calculate percent efficiency?

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Physics, 22.06.2019 08:00, cia196785920

If a balloon is taken outside on a very cold day, what will occur?

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Physics, 22.06.2019 11:40, johanperezpere51

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?

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Physics, 22.06.2019 16:30, skiddymark3ox93za

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?

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Physics, 22.06.2019 16:50, boopiee2349

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.