A force of 17 N is applied to the end of a 0.63-m long torque wrench at an angle 45 from a line joining the pivot point to the handle. What is the magnitude of the torque about the pivot point produced by this force?
A) 7.6 N m
B) 10.7 N m
C) 12.0 N m
D) 9.7 N m
Question 2
One of the first atomic bombs released energy equivalent to that of 20,000 tons of TNT explosive. How much mass was converted to energy by this explosion, given that 1000 tons of TNT produce 4.3 1012 J of energy.
Incidentally, modern H-bombs have energy yields 1000 times as much (c = 3.0 108 m/s)
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