Physics, 24.04.2020 22:53 nayelirios
What is the efficiency of a device that takes 400J of heat and does 120J of work while giving off 280 J of heat
Answers: 3
Physics, 22.06.2019 11:40
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 objectβand 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?
Answers: 3
Physics, 22.06.2019 19:30
How many electrons in an atom could have these sets of quantum numbers? =3n=3 electronselectrons =4,β=2n=4,β=2 electronselectrons =6,β=β=β1n=6,β=2,mβ=β1
Answers: 3
Physics, 22.06.2019 19:30
Assume that two of the electrons at the negative terminal have attached themselves to a nearby neutral atom. there is now a negative ion with a charge -2e at this terminal. what are the electric potential and electric potential energy of the negative ion relative to the electron? the electric potential and the electric potential energy are both twice as much. the electric potential is twice as much and the electric potential energy is the same. the electric potential is the same and the electric potential energy is twice as much. the electric potential and the electric potential energy are both the same. the electric potential is the same and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron. the electric potential is twice as much and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron.
Answers: 3
What is the efficiency of a device that takes 400J of heat and does 120J of work while giving off 28...
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