A baseball of mass is thrown with a speed of

PHYSICS · Multi-part · A Level · Physics · Particles and radiation · Particles and radiation

Problem

A baseball of mass 0.15 kg0.15\,\text{kg} is thrown with a speed of 40 m s−140\,\text{m s}^{-1}. Use h=6.626×10−34 J sh = 6.626\times10^{-34}\,\text{J s}. (i) Estimate the order of magnitude of its de Broglie wavelength. (ii) Comment on whether this wavelength can be detected with present-day laboratory instruments.

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