In which type of circuit does a charge have only one loop to flow through

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 .

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of