Which is not a part of a lever?

fulcrum
mechanical efficiency
effort
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The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points

What are the similarities & differences between a thermistor and a light dependent resistor in physics?