A round coin has a diameter of 19.55 mm,a thickness of 1.55 mm,and a mass of 2.50 g.What is its density? A)5.37 × 10³ kg/m³ B)21.5 × 10³ kg/m³ C)1.34 × 10³ kg/m³ D)2.68 × 10³ kg/m³ E)1.86 × 10^-4 kg/m³

Question

Quizplus · Accepted Answer

To find the density, use the formula: Density = Mass/Volume. First, convert the dimensions to meters: diameter = 0.01955 m, thickness = 0.00155 m. Calculate the volume of the coin using the formula for the volume of a cylinder: V = πr²h = π(0.01955/2)²(0.00155). Then, convert the mass to kg: 2.50 g = 0.0025 kg. Finally, calculate the density: Density = 0.0025 kg / Volume. The result is approximately 5.37 × 10³ kg/m³.

A Round Coin Has a Diameter of 19