• A student was disappointed when one of their large test tubes would not come clean following the Qualitative Analysis experiment. They decided to "eliminate" the dirty test tube by throwing it to the floor. If the test tube weighed 19.8 g and reached a velocity of 8.32 m/s at impact, calculate: 
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• a. the kinetic energy of the moving test tube at impact; 
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• b. the de Broglie wavelength of the test tube at impact.
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