If astronauts could travel at v disagree. 0.945c, we on earth would say it takes 4.200 945 4 44 years to reach pha centaur 42ð¤ çgint ears away. the astronauts (a) how much time passes on the astronauts' clocks? your response is within 10% of the correct value. this may be due to roundoff error or you could have a mistake in your calculation. results to at least four-digit accuracy to minimize roundoff error. years arn out all men mediate (b) what is the distance to alpha centauri as measured by the astronauts?
Answers: 2
Physics, 21.06.2019 23:00
Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?
Answers: 1
Physics, 22.06.2019 01:30
What is the magnitude of the resultant vector round your answer to the nearest tenth
Answers: 2
Physics, 22.06.2019 06:30
Organelles are 1. responsible for producing power for the cell 2. tiny structures in the cell that carry out the cell's activities 3. responsible for digestion in the cell 4. found outside of the membrane
Answers: 1
Physics, 22.06.2019 08:00
Why is it important always to use horizontal bars in unit fractions when performing unit conversions?
Answers: 3
If astronauts could travel at v disagree. 0.945c, we on earth would say it takes 4.200 945 4 44 year...
English, 10.03.2021 06:20
Mathematics, 10.03.2021 06:20
English, 10.03.2021 06:20
Mathematics, 10.03.2021 06:20
Mathematics, 10.03.2021 06:20
Medicine, 10.03.2021 06:20
Mathematics, 10.03.2021 06:20
History, 10.03.2021 06:20
English, 10.03.2021 06:20
Mathematics, 10.03.2021 06:20
Mathematics, 10.03.2021 06:20