3.

Mechanical energy is the sum of the

energy of an object.

O kinetic and potential

O potential and thermal

O potential and chemical

kinetic and chemical

What is the resulting disturbance of a surface wave? A: perpendicular B: opposite C: parallel D: circular

What is the best example of physical contamination? When a food service worker touches food A pesticide infectingsprayed in the food preparation area A paint chip Something falls off the wall in the food prep area Dirty utensil from tasting multiple

Sensible heat involves a change in which aspect of a substance?

The first law of thermodynamics states that ΔE = Q - W. Is this also a statement of the principle of conservation of energy? Yes, the heat added and the change in internal energy of the gas equal the work done by the piston.

Which of the following statements about degeneracy pressure is not true? A) Degeneracy pressure can halt gravitational contraction of a star even when no fusion is occurring in the core. B) Degeneracy pressure keeps any protostar less than 0.

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Why does momentum have a direction?

What is the difference between weight and mass?

An object has a mass of 8.00 kg. What is the gravitational force on the object by the earth?

Which of the following best characterizes the free energy change ΔG for an endothermic reaction under physiological conditions? A. The sign of ΔG is positive B. The sign of ΔG is zero C. The sign of ΔG is negative D.