According to The first law thermodynamics Energy can be created and destroyed, True or False? 

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

What is created when solids,liquids,an gases mix with one another

What is the primary force that suspension bridges use cables to hold their spans up? a. tension force b. resistance force c. normal force d. elastic force e. applied force