One of the most efficient engines built so far has the following characteristics: combustion chamber temperature = 1900°c, exhaust temperature = 430°c, 7.0 × 109 cal of fuel produces 1.4 × 1010 j of work in one hour.(a) what is the actual efficiency of this engine? (b) what is the carnot efficiency of the engine? (c) what is the power output, in hp, of this engine?
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What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential
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Will give brainliest! which statement best describes the difference between strong nuclear forces and weak nuclear forces? weak nuclear forces are involved when certain types of atoms break down. strong nuclear forces are responsible for holding atoms' nucleus together. weak nuclear forces hold bonds between atoms together. strong nuclear forces hold together the nucleus of an atom. strong nuclear bonds prevent atoms from falling apart. weak nuclear bonds prevent compounds from falling apart. strong nuclear forces are involved in breaking electrons from their shells. weak nuclear forces hold protons in the nucleus.
Answers: 3
Physics, 22.06.2019 05:30
What do you think car designers do if the damage caused by a crash test is too severe?
Answers: 1
Physics, 22.06.2019 06:00
An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?
Answers: 3
One of the most efficient engines built so far has the following characteristics: combustion chambe...
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