Sunlight is composed of an enormous number of light particles. The 40m 2 sail surface of LightSail 2 receives about 4.0 x 1022 photons each second. What would be the total impulse (magnitude and direction) on the sail in one second? What would be the total impulse (magnitude and direction) on the sail in one day?

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de Broglie Equation

The sketch of matter waves is drawn below: