Find the efficiency of the engine
Suppose a heat engine takes in 420 J of energy from a hot reservoir and performs 30 J of work in each cycle.
a) Find the efficiency of the engine.
b) Find the energy expelled to the cold reservoir in each cycle.
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A volume of 60.0mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 24.7mL of 1.50 M H2SO4 was needed?
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Suppose a heat engine takes in 420 J of energy from a hot reservoir and performs 30 J of work in each cycle. Find the efficiency of the engine.
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At time t=0 a grinding wheel has an angular velocity of 22.0 rad/s. It has a constant angular acceleration of 34.0 rad/s^2 until a circuit breaker trips at time t = 1.50 s. From then on, the wheel turns through an angle of 431 rad as it coasts to
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