Physics, 30.09.2021 18:30 madpanda55
A coal power station transfers 3.0×10^12 J by heat from burning coal and transfers 1.5×10^12 J by heat into the environment. What is the efficiency of the power station?
Answers: 2
Physics, 21.06.2019 14:00
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Physics, 22.06.2019 05:50
Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.
Answers: 2
Physics, 22.06.2019 14:10
Match these items. 1. coulombs __force 2. ohms __emf 3. centimeters __resistance 4. newtons __charge 5. volts __length
Answers: 1
Physics, 22.06.2019 14:30
Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o
Answers: 1
A coal power station transfers 3.0×10^12 J by heat from burning coal and transfers 1.5×10^12 J by he...
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