Chapter 19, Problem 44P

The figure gives the acceleration a versus time t for a particle moving along an x axis. The a-axis scale is set by as = 12.0 m/s². At t = -2.0 s, the particle's velocity is 11.0 m/s. What is its velocity at t = 6.0 s? a (m/s²) as -2 0 2 t(s) 4

Two solid cylindrical rods AB and BC are welded together at B and loaded as shown. Knowing that the average normal stress must not exceed 150 MPa in either rod, determine the smallest allowable values of the diameters d₁ and d2. Take P= 85 kN. P 125 kN B 125 kN C 0.9 m 1.2 m The smallest allowable value of the diameter d₁ is The smallest allowable value of the diameter d₂ is mm. mm.

Westros, from Game of Thrones, has an area of approximately 6.73⋅106 miles26.73⋅106miles2.  Convert the area of Westros to km2 where 1.00 mile = 1.609 km.