HESI A2 Physics Quizlet

Correct Answer: C

Rationale: To calculate work, we use the formula Work = Force × Distance. In this scenario, Amanda exerts a force of 100 N to push the lawnmower a total distance of 20 rows × 30 meters/row = 600 meters. Therefore, the work done is 100 N × 600 m = 60,000 N⋅m. This is why choice C, 60,000 N⋅m, is correct. Choices A and B are incorrect as they do not accurately calculate the work done. Choice D is also incorrect as we can determine the work done using the provided information.

Correct Answer: B

Rationale: Rationale: Viscosity is the resistance of a fluid to flow. It determines how easily a fluid can flow and is crucial in various applications like fluid dynamics. In contrast, inertia (choice A) is related to the mass of an object, not a property of a fluid. Compressibility (choice C) refers to the change in volume of a fluid under pressure, not its resistance to flow. Buoyancy generation (choice D) is related to the upward force exerted on an object immersed in a fluid, not a property of the fluid itself. Therefore, the correct answer is B as it directly relates to the definition and significance of viscosity.

Correct Answer: C

Rationale: The correct answer is C because frequency is the number of cycles per unit time. In this case, the wave has a frequency of 60 hertz, which means it completes 60 cycles per second. Choice A is incorrect because one cycle per minute would correspond to a frequency of 1 hertz. Choice B is incorrect because the frequency does not determine the distance from crest to crest. Choice D is incorrect because the distance from crest to trough is not determined by frequency. Thus, the correct answer is C based on the definition of frequency.

Correct Answer: C

Rationale: Failed to generate a rationale after 5 retries.

Correct Answer: C

Rationale: Step-by-step rationale for why choice C is correct: 1. The first law of thermodynamics is based on the principle of energy conservation. 2. Choice C accurately reflects this principle by stating that energy cannot be created or destroyed, only transferred or transformed. 3. This is in line with the law of conservation of energy, which is a fundamental concept in physics. 4. Choices A, B, and D are incorrect because they do not accurately represent the first law of thermodynamics. 5. Choice A violates the principle of conservation of energy, choice B refers to the second law of thermodynamics, and choice D is not directly related to the first law.