*4–68. the c83400-red-brass rod ab and 2014-t6- aluminum rod bc are joined at the collar b and fixed connected at their ends. if there is no load in the members when t1 = 50°f, determine the average normal stress in each member when t2 = 120°f. also, how far will the collar be displaced? the cross-sectional area of each member is 1.75 in2.

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.2 gpa). as one goes deeper and deeper in the ocean, the pressure increases by 10000 pa for every meter below the surface. if a diver goes down 80.0 m in the ocean, by how much does each cubic centimeter of her blood change in volume? give the answer in cubic centimeters (actually one cubic centimeter equals one milliliter).

An object with a mass of 1.5 kg changes its velocity from + 15 m/s to +22 m/s during a time interval of 3.5 seconds. what impulse was delivered to the objects?