In the book, Electronic Gadgets for the Evil Genius, they describe an electronic

Question

In the book, Electronic Gadgets for the Evil Genius, they describe an electronic pulser that uses capacitors with energy storage of 5000.0J. If something went wrong, and all this energy got converted into kinetic energy of a small piece of metal (say of the mass of a 45 caliber bullet m = 0.0149kg), how fast would the piece of metal be going? Note this is strictly a kinetics problem, no electricity and magnetism required. Second note, be very careful with high voltage systems. For your reference, the muzzle velocity of a rifle is about 350 m s .

(a) 336, 000 m s

(b) 580.0 m s

(c) 1.20 m s

(d) 12.4 m s

(e) 819 m s

Online Homework Problem 10.8 [3 pt(s)In the book, Electronic Gadgets for the Evil Genius, they describe an electronic pulser that uses capacitors with energy storage of 5000.0J. If something went wrong, and all this energy got converted into kinetic energy of a small piece of metal (say of the mass of a 45 caliber bullet

Explanation / Answer

E = 5000 J

All energy is converted into kinetic energy. so we can write

(1/2)mv^2 = 5000

v^2 = (2*5000)/0.0149

So, v = 819 m/s

Sa correct answer is option e

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