1. In a nuclear reactor 100.0 g of uranium is used for a certain amount of time. afterwards the mass of all the leftover material is 97.1 g. Calculate the amount of energy produced in Joules. (Please show steps for both) Special Relativity 2. A spaceship passes you at a speed of 0.700 c. As it passes by, you quickly measure its length to be 564. m. How long would it appear when at rest?

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change