HESI A2 Physics Quizlet

Correct Answer: C

Rationale: Failed to generate a rationale after 5 retries.

Correct Answer: D

Rationale: Step 1: The mechanical power equation is P = E / t, where P is power, E is energy, and t is time. Step 2: Power is the rate at which work is done or energy is transferred. Step 3: The SI unit of power is the watt (W), representing one joule per second. Step 4: Therefore, the correct answer is D: watts. Summary: - A: Ohms is the unit of electrical resistance, not power. - B: Joules is the unit of energy, not power. - C: Volts is the unit of electrical potential difference, not power.

Correct Answer: B

Rationale: To find the object distance, we can use the mirror formula: 1/f = 1/di + 1/do. Given f=2 cm, di=6 cm, we can solve for do. Plugging in the values, we get 1/2 = 1/6 + 1/do. Solving for do, we get do=6 cm. Therefore, the correct answer is B (6 cm). Choice A (3 cm) is incorrect because it does not satisfy the mirror formula equation. Choice C (12 cm) and D (30 cm) are also incorrect as they do not correspond to the calculated object distance of 6 cm.

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.

Correct Answer: C

Rationale: Failed to generate a rationale after 5 retries.