Metals and their ore
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This problem is providing information about the mass of a tennis ball, 56.6 g (0.0566 kg) and asks for the velocity it will have to equal the wavelength of green light, which is 5400 A or 540 nm (5.4x10⁻⁷ m). Thus, after doing the math, the result is 2.17x10⁻²⁶ m/s.
<h3>Broglie's wavelength:</h3>In this case, we recall the formula of the Broglie's wavelength as shown below:
Whereas lambda is the wavelength, h is the Planck's constant, m the mass and v the speed; thus, we solve for the speed according to the question:
Then, we just plug in the numbers we were given to get the answer:
Learn more about Broglie's wavelength: brainly.com/question/5440536