Physics, 26.07.2019 16:00, nsutton9985
Which statement best describes an isolated system? a )energy flow into and out of the system but matter is contained. b) energy is contained within the system and matter is exchanged. c) neither energy nor matter are exchanged with the surroundings. d) there is no energy or matter that exists inside an isolated system.
Answers: 1
Physics, 22.06.2019 14:30, sross8799
Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?
Answers: 2
Physics, 22.06.2019 14:30, trevorhenyan51
Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2
Answers: 1
Which statement best describes an isolated system? a )energy flow into and out of the system but ma...
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