Math Problem Statement

the volume of a sphere is given by the equation v=3/4πr^3, where r is the radius. calculate the volume of a sphere with a radius of 457 pm in cubic meters

Solution

The formula for the volume VV of a sphere is given by:

V=43πr3V = \frac{4}{3} \pi r^3

However, you mentioned the formula as V=34πr3V = \frac{3}{4} \pi r^3, which seems incorrect. Let's correct it and use the proper formula V=43πr3V = \frac{4}{3} \pi r^3.

Now, we need to calculate the volume with the radius r=457pmr = 457 \, \text{pm}. First, convert the radius from picometers (pm) to meters (m).

1 picometer (pm) = 1×10121 \times 10^{-12} meters (m), so:

r=457pm=457×1012m=4.57×1010mr = 457 \, \text{pm} = 457 \times 10^{-12} \, \text{m} = 4.57 \times 10^{-10} \, \text{m}

Now, substitute rr into the volume formula:

V=43π(4.57×1010)3V = \frac{4}{3} \pi (4.57 \times 10^{-10})^3

Let's calculate this.The volume of the sphere with a radius of 457 pm is approximately 3.998×1028m33.998 \times 10^{-28} \, \text{m}^3.

Would you like further clarification, or do you have any additional questions?

Here are 5 related questions:

  1. What is the surface area of a sphere with the same radius?
  2. How would the volume change if the radius were doubled?
  3. How does the formula for the volume of a cylinder compare to that of a sphere?
  4. What is the significance of the factor 43π\frac{4}{3} \pi in the formula for the sphere's volume?
  5. How can you calculate the mass of the sphere if you know its density?

Tip: When working with very small or large numbers, always pay attention to units and ensure they are consistent throughout the calculation.

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Math Problem Analysis

Mathematical Concepts

Geometry
Volume Calculation
Unit Conversion

Formulas

Volume of a sphere V = 4/3 π r^3
Unit conversion from picometers to meters (1 pm = 10^-12 m)

Theorems

Volume formula of a sphere

Suitable Grade Level

Grades 9-12