Answered

Get clear, concise, and accurate answers to your questions on IDNLearn.com. Get the information you need from our community of experts who provide accurate and thorough answers to all your questions.

A nuclear reaction releases 9.00 × 10^13 J of energy. What was the change in mass?
5.0 × 10^-4 kg
1.0 × 10^-3 kg
5.0 × 10^-3 kg
5.0 × 10^-2 kg

Sagot :

AL2006idn

A nuclear reaction is the perfect place to use   E = mc² .

                                              9.00 x 10¹³ = (m) (3 x 10⁸)²

Divide each side by  (3 x 10⁸)² :      m =  (9 x 10¹³) / (3 x 10⁸)²

                                                       m = (9 x 10¹³) / (9 x 10¹⁶) = 0.001 kg


Now, take several steps back, and look at what you've been working with:
You just showed that 1 gram of matter, when completely converted to energy,
produces the energy for a 100-watt light bulb to run for  28,519 years !


Thank you for using this platform to share and learn. Don't hesitate to keep asking and answering. We value every contribution you make. IDNLearn.com has the solutions to your questions. Thanks for stopping by, and see you next time for more reliable information.