1. A wire originally 3.2 m long suffers a 7.5% strain. What is its new stretched length? 

2. A ball of mass 3.5 kg having diameter of 60 cm falls in the swimming pool. Calculate its buoyant force and volume of water displaced. Note: Volume of a ball is V=4/3 ?r^3

3.

 

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32 cm F=2400 0=450 What torque results from a 240 N force 45 from horizontal on a wrench 32 centimeters away from the bolt? NO UNITS. Remember sig figs! 32 cm F=2400 0=450 What torque results from a 240 N force 45 from horizontal on a wrench 32 centimeters away from the bolt? NO UNITS. Remember sig figs!