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What is the equation of a circle?

Define Enthalpy:

• The energy in a system arising from the relative positions and interactions of its parts.

• The unavailability of a system's thermal energy for conversion into mechanical work.

• A form of energy transfer through conduction, convection, and/or radiation.

• A thermodynamic quantity equivalent to the total heat content of a system.

What variable represents enthalpy?

• S

• H

• Q

• E

How much Power does a circuit consume that is operating at 2V and 3A?

• 6W

• 2/3W

• 3/2W

• 12W

• x = 2, 3

• x = -1, -5

• x = 1, -6

• x = 1, 5

• 3

• 2

• 4

• 6

A block of cheese B hangs from the ceiling by rope 1. A wheel of cheese W hangs from the block of cheese by rope 2. What is the correct free body diagram for the wheel of cheese w?

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Choose the sentence with the correct comma placement.

• I need, sugar, butter, and eggs from the grocery store.

• I need sugar, butter, and eggs, from the grocery store.

• I need: sugar, butter, and eggs from the grocery store.

• I need sugar, butter, and eggs from the grocery store.

What is the second law of thermodynamics?

• Two systems in equilibrium with a third system are in thermal equilibrium with each other.

• Entropy of an isolated system always increases.

• Energy can change forms but it is neither created nor destroyed.

• Entropy of a system approaches a constant as temperature approaches absolute zero.