In a gas-powered car, a battery a) produces chemical potential energy to run the engine. b) produces mechanical work to rotate the tires and make the car move. c) produces electrical energy to start the car. d) produces thermal energy to produce heat for the heating and cooling system.
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If a clock aboard a space ship traveling at 0.900 c of the speed of light relative to earth chimes once at the beginning of the hour and again when it reads one hour later, how much time would an observer on earth say elapsed between the two chimes?
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Physics, 21.06.2019 16:00
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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, 23.06.2019 08:00
Use henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.7 l of water upon warming from 25 Ëšc to 50 Ëšc. assume that the water is initially saturated with nitrogen and oxygen gas at 25 Ëšc and a total pressure of 1.0 atm. assume that the gas bubbles out at a temperature of 50 Ëšc. the solubility of oxygen gas at 50 Ëšc is 27.8 mg/l at an oxygen pressure of 1.00 atm. the solubility of nitrogen gas at 50 Ëšc is 14.6 mg/l at a nitrogen pressure of 1.00 atm. assume that the air above the water contains an oxygen partial pressure of 0.21 atm and a nitrogen partial pressure of 0.78 atm.
Answers: 2
In a gas-powered car, a battery a) produces chemical potential energy to run the engine. b) produces...
English, 14.02.2020 20:33
Physics, 14.02.2020 20:33