Q1. How many 104W lightbulbs can you use in a 113 V circuit without tripping a 17 A circuit breaker? (The bulbs are connected in parallel that means that the potential difference across each lightbulb is 113V.)

Q2. What are the analytical forms of the LQ model for cell survival and the MTSH model? What are the advantages of either of these models holds relative to the simple exponential model? What is the property of low-dose portion of the survival curve that make the LQ model more appropriate than the MTSH model for many experiments in that range.