Physics, 06.12.2021 18:00 Joseph8439
An engine has an energy input of 125 J, and 35 J of that energy is transformed into useful energy. What is the efficiency of the engine? 28% 35% 72% 90%.
Answers: 2
Physics, 21.06.2019 13:40
How will each of the following changes in demand and/or supply affect equilibrium price and equilibrium quantity in a competitive market; that is, do price and quantity increase or decrease, or are the answers indeterminate because they depend on the magnitudes of the shifts?
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Physics, 22.06.2019 14:00
Ascientific blank must be testable and capable of being proven false?
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Physics, 22.06.2019 22:20
The starship enterprise is caught in a time warp and spock is forced to use the primitive techniques of the 20th century to determine the specific heat capacity of an unknown mineral. the 125-g sample was heated to 96.3°c and placed into a calorimeter containing 85.9 g of water at 20.0°c. the heat capacity of the calorimeter was 14.2 j/k. the final temperature in the calorimeter was 24.5°c. what is the specific heat capacity (in j/g°c) of the mineral? enter to 4 decimal places.
Answers: 1
Physics, 23.06.2019 00:00
Why should the wavelength scale of spectroscope be calibrated
Answers: 2
An engine has an energy input of 125 J, and 35 J of that energy is transformed into useful energy. W...
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