Chemistry, 28.11.2019 12:31 tiggyandrep2dbee
(9). a machine has a mechanical advantage of 0.6. what force should be applied to the machine to make it apply 600 n to an object?
(2). carlota does 2000 j of work on a machine. the machine does 500 j of work. what is the efficiency of the machine?
(4). which best describes a difference between energy transformations in power plants and dams?
(5). a 40 kg dog is sitting on top of a hillside and has a potential energy of 1,568 j. what is the height of the hillside? (formula: pe = mgh)
(6). what is the overall energy transformation in a coal-fired power plant?
(10). which is an example of potential energy?
Answers: 2
Chemistry, 21.06.2019 21:10
How is 0.00235 expressed in proper scientific notation? a. 2.35 × 10-3 b. 0.235 × 10-2 c. 2.35 d. 2.35 × 103
Answers: 1
Chemistry, 22.06.2019 17:40
If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?
Answers: 1
Chemistry, 23.06.2019 08:30
According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.
Answers: 1
(9). a machine has a mechanical advantage of 0.6. what force should be applied to the machine to mak...
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