7. A force of 60N is applied to an area of 20mm2, What is the pressure? A. 300 x 103 Pa B. 3 kPa C. 3 x 103 lby / in2 D. 3 x 103 kPa 8. A 1,000 lb steel casting is suspended as shown. Angle a = 30.0' and angle B - 45.0 . What is the tension, Tz? A. 732 1b T , B. 732 N C. 897 lb D. 897 N E. None of the above 9. For a free body in 2-D space in static equilibrium which of the following must be true? A. The cross-product of all force vectors = 0 B. The dot product of all force vectors = 0 C. The sum of the x-components of all force vectors = 0 D. All of the above 10. Given two vectors A = 3i - 2j and B = i + 5j, which of the following represents a vector? A. 2A x 5B B. |A + BI C. 3A - 2B D. |ALIBI