A metal rod with a 4 millimeter radius is held in tension. When a load of 15,700 N is introduced, a reduction of 5E-3 millimeter in diameter is recorded. What would be the Poisson's ratio for this material if its modulus of elasticity is 140 GPa

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.