Question 1
Assume a gram of a substance marketed as "Pure Energy" is annihilated by a gram of a second substance "Anti-Pure Energy." How long would the energy released power a city which uses 109 watts of power?
◦ 40 hrs
◦ 25 hrs
◦ 50 hrs
◦ 65 hrs
◦ 50000 hrs
Question 2
Boat 1 goes directly across a stream a distance L and back taking a time t1. Boat 2 goes down stream a distance L and back taking a time t2. If both boats had the same speed relative to the water, which of the following statements is true?
◦ t2>t1
◦ t2<t1
◦ t2 = t1
◦ t2 = 2t1
◦ t2 = 0.5t1