This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
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You're on a roll — Question 1: Determine the length of the feather. Step 1: Read the starting point of the feather on the ruler. The feather starts at the 10 mm mark (or 1.0 cm). Step 2: Read the ending point of the feather on the ruler. The feather ends at the 28 mm mark (or 2.8 cm). Step 3: Calculate the length of the feather. Length = Ending point - Starting point Length = 28 mm - 10 mm Length = 18 mm The final answer is 18 mm. --- Question 2: Compare the mass and the weight of the two objects. Step 1: Observe the extension of the springs. Object X causes a smaller extension of its spring. Object Y causes a larger extension of its spring. Step 2: Relate spring extension to weight. Since the springs are identical, a larger extension indicates a greater force (weight) acting on the spring. Therefore, object Y has a greater weight than object X. Step 3: Relate weight to mass. Weight is directly proportional to mass (W = mg). Since object Y has a greater weight, it must also have a greater mass than object X. Comparison: • Object Y has a greater weight than object X. • Object Y has a greater mass than object X. --- Question 3: Determine the density of the oil. Step 1: Identify the given information. Volume of oil (V) = 750 cm³ Mass of bottle + oil = 650 g Mass of empty bottle = 50 g Step 2: Calculate the mass of the oil. Mass of oil = (Mass of bottle + oil) - (Mass of empty bottle) Mass of oil = 650 g - 50 g Mass of oil = 600 g Step 3: Calculate the density of the oil. Density () is calculated using the formula = MassVolume. = 600 g750 cm^3 = (60)/(75) g/cm^3 = (4)/(5) g/cm^3 = 0.8 g/cm^3 The final answer is 0.8 g/cm^3. Got more? Send 'em!