What Is The Kinetic Energy In J Of A An Ar Atom Moving At A Speed Of 650 Mgt S B

What is the kinetic energy, in J, of (a) an Ar atom moving at a speed of 650 m>s, (b) a mole of Ar atoms moving at 650 m>s? (Hint: 1 amu = 1.66 * 10-27 kg.)

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