What is the purpose of a heater core

Fluids at rest possess no flow energy. a)- true b)- false

Burgers vector is generally parallel to the dislocation line. a)-true b)-false

Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed.gi) ifn 1, what will happen to the material when transformed material when