Physics, 11.10.2019 17:20 Lindseycline123
Um joalheiro deseja confeccionar um novo anel a partir de dois outros, um de aço e um de ouro, como mostram as figuras. inicialmente, os anéis separados, de espessura desprezível, estão à mesma temperatura e o encaixe não é possível porque ambos possuem mesmo raio. o joalheiro então aquece os dois anéis juntos por certo tempo, conseguindo depois disso realizar o encaixe. foi possível confeccionar este anel utilizando este procedimento porque o
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Physics, 22.06.2019 09:00
When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.
Answers: 1
Physics, 22.06.2019 10:30
Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.
Answers: 1
Physics, 22.06.2019 11:10
An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?
Answers: 3
Physics, 22.06.2019 13:00
Ways that industry and agriculture use physical properties to separate substances
Answers: 1
Um joalheiro deseja confeccionar um novo anel a partir de dois outros, um de aço e um de ouro, como...
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