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A 100 hp car engine operates ata bout 15 percent efficiency. Assume the engine's water temperature of 85°C is it scold-temperature (exhaust) reservoir and 500°C is its thermal "intake" temperature (the temperature of the exploding gas/air mixture).
(a) Calculate its efficiency as a percentage of its maximum possible (Carnot) efficiency.
(b) Estimate how much power (in watts) goes into moving the car.
How much heat, in joules and in kcal, is exhausted to the air per hour?
Three similar coils, each having a resistance of 8 and an inductive reactance of 8 are connected (a) in star and (b) in delta, across a 415V, 3-phase supply. Measure for
Trojan points: It is L4 & L5, the two dynamically stable Lagrange points (under certain conditions). Trojan satellites: This is the satellites that orbit a body at o
: Construct a regular proof to derive the conclusion of the following argument: 1. (A & U) ~R 2. ~(~R v ~A) / ~U
Influence the value of g Shape of the earth : (a) At poles : Generally 'g' value is inversely proportional to the radius of the earth ' r' . Due to flattening of the e
The decrease of mass is related to the binding of the individual particles together inside the nucleus. Therefore every stable nucleus has a mass which is less than the total ma
The focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Where is the image of this object formed? Ans: The image of given ob
1) Consider 2kg mixture of H 2 and N 2 ideal gases inside a closed piston-cylinder device at 150kPa and 100o C. This mixture has 0.4 mole fraction of H 2 . This mixture undergoes
#Need help integrating a=d^2/dt^2
CANT understand anything!!
Graphs of current against voltage for two resistors P and Q are shown in Figure. Determine the value of every resistor.
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