Consider the 20×60mm (h×b) bar with a 10-mm diameter hole which is made of steel with equal tensile and compressive yield strengths of 600 MPa. If we assume the material behaves with an ideal elastic-plastic stress strain response and the plate is initiallyfree of residual stresses, make a drawing of the stress distribution in the plane of the hole:a) When a tensile load of 200 kN is applied. b) When a tensile load of 400 kN is applied. c) After the 400 kN load is removed. d) What compressive load would you need to apply to make the material yield in compression?

Acyclotron is used to produce a beam of high-energy deuterons that then collide with a target to produce radioactive isotopes for a medical procedure. deuterons are nuclei of deuterium, an isotope of hydrogen, consisting of one neutron and one proton, with total mass 3.34×10−27kg. the deuterons exit the cyclotron with a kinetic energy of 6.40 mev .a-what is the speed of the deuterons when they exit? b-if the magnetic field inside the cyclotron is 1.25 t, what is the diameter of the deuterons' largest orbit, just before they exit? c-if the beam current is 350 μa how many deuterons strike the target each second?