The Rate of Energy Flow Per Unit Area of a Sinusoidal

question 14

Multiple Choice

The rate of energy flow per unit area of a sinusoidal electromagnetic wave has an average value of $0.601 \mathrm {~W} / \mathrm { m } ^ { 2 }$ . What is the maximum value of the magnetic field in the wave? $\left( c = 3.00 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } , \mu _ { 0 } \right.$ $= 4 \pi \times 10 ^ { - 7 } \mathrm {~T} \cdot \mathrm { m } / \mathrm { A } , \varepsilon _ { 0 } = 8.85 \times 10 ^ { - 12 } \mathrm { C } ^ { 2 } / \mathrm { N } \cdot \mathrm { m } ^ { 2 }$ )

• A) \(7.09 \times 10 ^ { - 8 } \mathrm {~T}\)
• B) \(9.81 \times 10 ^ { - 8 } \mathrm {~T}\)
• C) \(5.02 \times 10 ^ { - 8 } \mathrm {~T}\)
• D) \(3.55 \times 10 ^ { - 8 } \mathrm {~T}\)
• E) \(1.42 \times 10 ^ { - 7 } \mathrm {~T}\)

Understand parental or guardian influence on child nutrition and physical health.

Learn about the relationship between obesity, self-esteem, and social skills in children.

Recognize the significance of interventions in preventing and managing childhood obesity.

Understand the role and types of motor skills in children's physical, cognitive, and athletic development.

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