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The E⃗ field in an EM wave in free space has a peak of 21.3 mV/m...

The E⃗ field in an EM wave in free space has a peak of 21.3 mV/m . Part A What is the average rate at which this wave carries energy across unit area per unit time? Express your answer using three significant figures. I I = nothing W/m2 The magnetic field in a EM wave traveling in free space has an rms strength of 21.1 nT .

Estimate the radiation pressure due to a bulb that emits 25 W of EM radiation at a distance of 7.5 cm from the center of the bulb. Assume that light is completely absorbed.

Part A How long does it take to deliver 375 J of energy to 1.00 cm2 of a wall that it hits perpendicularly? Express your answer using three significant figures.

Estimate the force exerted on a fingertip at this point. Suppose that the area of the fingertip is 1.2 cm2 . Assume that light is completely absorbed.

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